US2587415A

US2587415A - Snowplow

Info

Publication number: US2587415A
Application number: US6219A
Authority: US
Inventors: Vanvick Isak
Original assignee: Individual
Current assignee: Individual
Priority date: 1948-02-04
Filing date: 1948-02-04
Publication date: 1952-02-26
Anticipated expiration: 1969-02-26

Description

I. VANVlCK SNOWPLOW Feb. 26, 1952 5 Sheets-Sheet 1 Filed Feb. 4, 1948 IMVENTOR ISAA VANV/CK I 5v 1:- 7d- 50 ml? ATTORNEY Feb. 26, 1952 N K 2,587,415

SNOWPLOW Filed Feb. 4, 1948 5 Sheets-Sheet 3 A from/EV Patented Feb. 26, 1952 UNITED STATES PATENT OFFICE SNOWPLOW Isak Vanvick, Minneapolis, Minn. Application February 4, 1948, Serial No. 6,219

3 Claims. (01. 37-53) This inventionhas relation to a snowplow.

. An object of the invention is to provide a machine for removing or handling snow wherein will be incorporated desirable and improved features and characteristics of construction novel both as individual entities of the machine and in combination with each other.

A further object is to provide a machine for removing snow which can be self-propelling.

A further object is to provide a snow handling machine which will be effective in wet and sticky snow.

A further object is to provide in a machine of the present character, a snow removing or handling entity of novel and improved construction.

' And afurther object isto provide a snow plow incorporating features and characteristics as hereinafter set forth.

With the above objects in view, as well as others which will appear as the specification proceeds, the invention comprises the construction, arrangement and combination ofparts as now to be fully described and hereinafter to be specifically claimed, it being understood that the .disclosure herein is ,merely illustrative and intended in no way in a limiting sense, "changes in details of construction and arrangement of parts being permissible as long as within the' line 33 in Fig. 2;

Fig. 4 is a vertical sectional view, taken as on line 4--4 in Fig. 3;

Fig. 5 is a detail sectional view, taken as on line 5-5 in Fig. 3; and

Fig. 6 is a fragmentary elevational view detailing an adjustable deflector of the snow plow.

With respect to the drawings and the numerals of reference thereon, I0 represents a frame of the snow plow, II indicates supporting wheels for said frame, and I2 designates guide handles on said frame for said snow plow. The snow plow is adapted to be manually guided, and a rotatable element and feed screws of a snow removing or handling entity of said snow plow are adapted to be driven throughthe instrumentality ofmechanism", to be-described; The

Q snow plow can be propelled either manually or through the instrumentality of the feed screws.

The frame I!) includes an upright rear wall I3, upright side walls I4 and I5, an upper wall I6, a lower wall l1, and a cylindrical wall 45 disposed between said rear wall i3 and the upper, lower and side walls. A rear part-cylindrical wall 46, between the end walls I4 and I5 and exterior of the cylindrical wall 45, connects the upper and lower walls [6 and I1. The rear wall I3, the side walls I4 and I5, the upper wall IS, the lower wall H, the cylindrical wall 45 and the part-cylindrical wall 46 are integrally connected in any suitable and convenient manner,

as by welding or riveting.

The rear wall I3, the side walls I4 and I5, the upper wall I5, the lower wall H, the cylindrical wall 45 and the part-cylindrical wall 46 cooperate with a'rotatable element I8 and feed screws I9 and 2B of the snow plow to provide a snow removing or handling entity for said snow plow. Said rotatable element I8 is fixed upon a longitudinal horizontal shaft 2| and is situated in an annular chamber 22 contiguous with the rear wall I3 and provided by the cylindrical wall 45. A passageway 23 is bounded by said cylindrical wall 45 and upper wall I6, islocated forwardly of and is contiguous with said annular chamber 22. Opposite end portions of said shaft 2| are mounted in the rear wall l3 and in a gear box 24 suitably and conveniently supported, as at 25, upon the midlength of the upper wall I6. One of the feed-screws I9, 20 is right and the other is left, and said feed screws I9, 20 are fixedly supported upon a transverse horizontal shaft 26 disposed forwardly of the annular chamber 22 and having its opposite ends rotatably mounted, as at 21, upon the side walls I4 and I 5. An intermediate part of the shaft 25 is mounted, as at 28, in the gear box, and the feed screws I9 and 20 are at opposite sides of said gear 'box'directly in front ofthe annular passageway 23 to the annular chamber 22.

The supporting wheels II are upon a rearward portion of the frame Ill, and a forward portion of the lower wall I! of said frame is adapted to lie in adjacent relation to the ground while the snow plow is being propelled through the medium of the handles [2. Lower portions of the feed screws I9 and 20 are at an elevation a trifle above that of said lower wall I! when the plow is being thus manually propelled.

The frame I0 suitably and conveniently supports an internal combustion engine 29 of the snow plow which is adapted to the purposeof driving or turning the rotatable element l8 and the shaft 26 supporting the feed screws l9 and 20. As shown, the shaft 30 of the engine 29 rigidly supports a gear 3| which meshes with a gear 32 fixed on the shaft 2|, and'a worm 33 on said shaft 2| meshes with a worm gear 34 fixed upon said shaft 26. Upon operation of the internal combustion engine 29, the rotatable element I8 will be driven or turned through the instrumentality of the gears 3| and 32 and the shaft 2|, and the shaft 26, together with the feed screws l9 and 20 fixed thereon, will be driven or turned through the instrumentality of said gears 3| and 32, said shaft 2|, said worm gear 33 and said worm gear 34.

Forward portions of the side walls l4 and I5, the upper wall IS, the lower wall H and partcylindrical wall 46 together form an open faced snow gathering chamber in which the feed screws operate. The forward portion of upper wall l6 extends upward and outward from the top of the' feed screws l9 and 23. The part-cylindrical wall 46 is concentric with and situated close to the feed screws l9 and 29, and the forward margin of said lower wall I! is constituted as a knife edge 35. g

The rotatable element I8 is constituted as a pair of snow transporting elements 36 situated at opposite sides of and disposed radially of the shaft 2|. Each snow transporting element 36 is straight in the direction of its length and curvilinear in cross-section.

The snow transporting elements 33 are arranged concentrically of and in comparatively close relation to the cylindrical wall bounding the annular chamber 22, and said snow transporting elements are in vertical alinement with a vertical outlet passageway 31' from said annular chamber.

The rotatable element I8 is revolved so that its snow transporting elements 35 move in the direction of the arrow in Fig. 5, and said snow transporting elements 36 have width a bit less than the width of the annular chamber-22. The arrangement is suchthat the concave surfaces 'of the snow transporting elements are the working and transporting surfaces, respectively, thereof The shaft 26, with the feed screws |9, 29, is

revolved so that said feed screws will cause.

snow to'be fed interiorly of the snow plow, toward the gear box 24. v

The vertical outletpassageway 3! supports an adjustable snow deflector '38 which can be of ordinary or preferred construction, and means for manipulating said adjustable snow deflector is supported upon the guide handles l2. More explicitly, the lower end portion 39 of the snow deflector 38 is'rotatably supported upon the upper end portion of the vertical outlet passageway 31, a clip were; the purpose of retaining said snow deflector 38 and outlet passageway 31 in assembled relation, and a gear 4| at the lower end of said snow deflector is for accomplishing rotational adjustment of the snow deflector. An

combustion engine 29. Said internal combustion engine can be of any character suitable to its intended purpose.

The manner in which the snow plow operates will be evident. The plow may be propelled either manually from the guide handles |2 or under the power of the engine 29. When power propulsion is desired, the guide handles are elevated to tip the snow plow forward. This brings feed screws l9 and 2|) in contact with the ground and brings wheels H in spaced relation with the ground. The construction and arrangement are such that feed screws l9 and 20 will be rotated in direction to cause the snow plow to be propelled forwardly when the feed screws are rested on the "ground.

Under either method of propulsion, the open faced snow gathering chamber will direct the snow and ice into the snow plow. The forward portion of upper wall [6 will direct snow down into-the feed screws 19 ai1d20, while said 'fe'ed screws cooperate to feed anddirect snow-and ice from the front'of the snow plow to the annular passageway 2'3 whence said snow and ice will enter the annular chamber 22 concurrently with movement ahead of the snow plow. The part-cylindrical wall 46 and the side walls l4 and I5; by their-close proximity to the rotating feed screws I9 and 29 act to'prevent any sticky or wet snow from accumulatingadjacent to the feed screws l9 and 20' where it would tend to retard the movement of said screws. The snow transporting elements 36 are adapted'to cause snow andice to be forced through the outlet passageway 31 and-the snow deflector 38 out of the machine. Each snow transportingelement 36 will carry an individual load 'or shovelful of snow up through said outlet passageway 31. The rotatable element l8 will be revolved at a high rate of speed, and the snow and ice will leave the outlet passageway 31 inthe form of individual and separate charges of snow and ice each equal in amount to 'ashovelful or snow and ice forced out of the machine under .considerable momentum by the centrifugal force ex= erted-through the snow transporting elements 36.

Whatis claimed is:

1. A drive mechanism for asnow plow comprising a helical =feed screw hcnzonmn and transversely mounted on said plow at a forward portion thereof and disposed to have a lowermost part" of said screw normally slightly spaced from and. immediately adjacent the ground, power actuated means for causing. said feed. screw to be rotated, a pairof supporting wheels r0"- tatably mounted on said plow on an axis-parallel to the axis of said feed screw and rearward thereoffor supporting the plow-in normal operation under manual propulsion, and an actuat ing handle rig-id with said plow for m'anu'ally propelling and guiding said plowin n'o 'rmal operation and for raising said wheels from the ground and bringing said feed screwin operative connection with the ground to eifect forward=drive of the plow in response to actuation of said power actuated means. a

2. In a rotary snow plow having a helical'feed screw at a forward portion thereof for conveying snow to a rotary snow transporting element disposed rearwardly'of and communicating with said feed screw, a drive mechanism comprising said helical feed screw horizontally-and trans- "vrs'ely mounted to have ia lowermost .portion thereof in close proximitytothe' 'ground, power actuated means for causing saidi feed '-''screw to be rotated, a pair of supporting wheels rotatably mounted on said plow rearward of said feed screw on an axis parallel to the axis of the feed screw for supporting said plow in normal operation under manual propulsion, and an actuating handle rigid with said plow for manually propelling and guiding said plow in normal operation and for raising said wheels from the ground and bringing said feed screw into operative connection with the ground to effect forward drive of the plow in response to actuation of said power actuated means.

3. In a rotary snow plow, the combination with a frame, a prime mover mounted on said frame, and a rotary snow transporting unit on said frame operably connected with said prime mover, of a helical feed screw horizontally and transversely mounted on a forward portion of said frame in close proximity to the ground for conveying snow to a position directly forward of said snow transporting unit, means connecting said prime mover and said helical feed screw to cause said feed screw to be rotated downwardly at a forward portion thereof and upwardly at arearward portion thereof in response to operation of said prime mover, a pair of supporting wheels rotatably mounted on the frame on an axis parallel to the axis of said feed screw and rearwardly thereof for supporting said. plow in normal operation under manual propulsion, and an actuating handle rigid with said plow for manually propelling and guiding said plow in normal operation and for raising said wheels from the ground and bringing said feed screw in operative connection with the ground to efiect forward drive of the plow in response to rotation of the feed screw.

ISAK VANVICK.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENT Number Name Date 1,587,449 Wandscheer June 1, 1926 2,092,536 Sicard Sept. 7, 1937 2,168,866 Gehl Aug. 8, 1939 2,278,220 Sicard Mar. 31, 1942 2,373,318 Lewin Apr. 10, 1945 2,375,965 Turtle May 15, 1945