US2190452A

US2190452A - Scraping apparatus

Info

Publication number: US2190452A
Application number: US212021A
Authority: US
Inventors: Joseph H Kerber
Original assignee: HI WAY SERVICE CORP
Current assignee: HI WAY SERVICE CORP; HI-WAY SERVICE Corp
Priority date: 1938-06-06
Filing date: 1938-06-06
Publication date: 1940-02-13
Anticipated expiration: 1957-02-13

Description

' Fel 13, 1940,-l J. H. 'KER'BER l scRAPING APPARATUS Fiied qun s', 193s 5 sheets-sheet 1 INVENTOR ATTORNEY.

IFeb.. 13, 1940. J. H. KERBER I 2,190,452

FIG-.2,

` :scRPING APPARATUS Filed-'June 6, 1936 3 Sheets-Sheevt 2' .INVENTOR ATTORNEY 'MW-f@ v BY y Feb. 13, 1940. u .l-l. KERBER .2,190,4 52'- I scRAPING APPARATUS Filed 'June 6, i936 3 Sheets-'Sheet 3 n ATTORNEY l ls I I6 21 l y I l BY lPatented Feb. 13, 1940 UNITED STA-Tes PATENT .OFFICE scaAPmG APPARATUS Joseph H. Kerber, Milwaukee, Wis., -assignor lli-Way Service Corporation, Milwaukee, WN

a corporation of Wisconsin Appuuonrune, s, 193s, serial No. 212,0211 scisma (ci. .sv-144) 'Ihe invention relates t0 material-handling apparatus and more particularly to.those forms of apparatus employing scraper blades such as used as bulldozers, backilllers, and snowplows. The main object of the invention is to provide aconstruction in which the scraper blade may lbe given a vertical angular adjustment through operating connections controlled by. the operator of the vehicle on which the scraper is mounted. Heretofore, any vertical angular adjustments have had to be made while the vehicle was standing still, while with the present invention the cutting angle maybe changed without getting out of the machine and at any time which greatly facilitates the scraping of a road to any desired inclination. l

A further object of the inventionis to pro-4 vide a connection'for the scraper blade at spaced points which will shorten the over all length of 'the machine.-

A further object of the invention is to provide an arrangement in .which the scraper is angularly adjustable relative to the direction of travelfof the vehicle and may also be positioned at-right angles to said direction of travel.

vThe invention further consists in the several features hereinafter set forth and more particularly defined by claims at the conclusion hereof.

In the drawings:

Fig.` l is a side elevation view of al tractor equipped with a scraping apparatus embodying the invention; I

Fig. 2 is a plan view of the apparatus, parts being broken away and parts shown in section; Fig; 3 is a detailed vertical sectional view on the line 3--3 of Fig. 2;

Fig. 4 is a detailed vertical sectional view through the line 4-4 of Fig. 2;` l

Fig. 5 is` a vertical sectional view taken on the line 5-5 of Flg. 1; Y

Fig. 6 is a diagrammatic view vof the apparatus with the scraper blade in one angulary position; Fig. 7 is a diagrammatic view of the apparatus with the scraper blade in a straight position; Figs. 8 to l2 are views of the scraper in various positions of vertical adjustment;

Fig. 13 -is a detailed sectional viewon the line -ls-ls of Fig. 2.

In the drawings, the numeral I5 designates a tractor of known construction of the full crawler typevhaving endless propelling treads I6 running over sprockets I1 and I1', here shown conventionally at the front and rear portions of the tractor and over the usual truck or tread rollers (not shown) mounted .in 'the truck or tread frames I8. Asis usual, the rear sprockers I1 are driven from the engine housed in the housing I9 through a suitable transmission (not Shown) and under the control of the operator or driver of the'tractor from his seat 20, these controls not being specifically shown.

The truck frames I8 include frame members tov which pivot forming brackets y2I are secured, said brackets having ball shaped pivot ends 22 upon which the side frame members 24 of the implement or blade-supporting frame are pivotally mounted. This supporting frame further ineludes frame members 25 which areadjustable lengthwise relative to the members 24 land may also include a triangular framev member 26 adapted to be secured to either of. the members 24. The scraper blade or other implement member 21 is adapted to be connected to the

members

24, 25, and 26 by pin joints such as that shown ln Fig.' 4 which includes the removable pin 28 adapted to be passed through

holes

29 and 30 in the scraper and frame member respectively, the holes 30 being shown in Fig. 4 as having clearance to accommodate for ,the vertical angular adjustment of the blade.

Angled brackets 3| are secured to the truck frame parts 32 by bolts 33, and U-shaped lever members 34 straddle the front ends of the truck frames I8 and are pivotally connectedto each set of brackets by pivot bolts 35.

The side frame members 24 lpreferably carry plates 36 which cooperate with similar plates 31 on the brackets 3i to keep the sides of the supporting frame in proper alignment.

Each member 34 is operatively connected by' links 38 with its cooperative side 4frame member 24. l

Each of the supporting frames are independently operable through a hydraulically operated means including a hydraulically operated cylinder 39 pivotally connected at its rear end upon 'the pivot pin 40 securedto the frame of the tractor and having a piston working in said cylinder `with its rod 4I operatively connected to the member 34 by the pivot pin 42. Each of the cylinders 39 is adapted to be supplied through pipe connections 39 with fluid from a suitable source of pressure supply andunder the action of a suitable control valve. I

With vthe above construction, movement of the rod 4I toward the left swings the lever or memy ber` 34 upwardly, and this through the links 38 acts to swing the 4frame members 24 upwardly and thus lift that end of the scraper blade to which the frame member 24 isconnected. Thus independently adjustable, the vertical angularity of the blade may be adjusted to suit the requirements of the work.

A is

In order to adjust the' angle the blade Vmakes in a horizontal plane, the frame member 26 may be connected to either of the angled ends 43 of the side frame members 24 by removable pin connections 44, similar to that shown in Fig. 4, One position being shown in Fig. 2 and the other position shown in Fig. 6. f

In either position of angular adjustment, the frame members 25 are connected to the members 2d and 21 to act as braces, such connections being shown inv Fig. 6 where one of the braces 25 connects with the outer end of the member 24 and the outer end of the blade'and the other connects lthe outer end of the blade with the.

inner 'end-of the other member 24 by a remov- -able pin 2 8 passing through openings in the rear end of the memberv and the openings 29 in-the memberv24. l

For the straight connection, the member 26 is omitted and the scraper blade connected directly to the ends of the frame members 24. Y

Under these conditions the blade is further braced by the `connection of the frame member 25 with the end of the blade and with the intermediate part of theV member 24, as shown in Fig. 7. y V

With any'of the positions of angular adjustment in a horizontal plane, the connections for lifting the ends of the blade may be operated together to lift the blade 21 vertically from its position shown in Fig.- 8, or either end may be raised or lowered relatively to the other to assume the different positions shown in Figs. 9 to 12 inclusive.l The swivel or ball and socket joints provided between the pin ends 22 and the sockets'i on the ends of'the levers 24 permit of the ready raising `and lowering of one end relative to the other.

t is to be noted that the angled ends 43 are provided with three spaced holes for registering With similar spaced holes 29 in the blade 2 as shown in Fig. 2 in one of theangular positions of the blade, the member 26 being pinned to thev blade at the opposite side -through one. set lof the holes 29 while the hole 30 at vthe junction of the

portions

43 and 24 takes a pin dit to secure it to the rear end ofthe member 2 6.

I desire it to be understood that this invention is not to 'be limited to any particular construction 'or arrangement of parts except in so faras such limitations are included in the claims.

What I claim as my invention is: 1. The combination with a vehicle, of a scraperv blade adapted rto work at the front of the vehicle, levers pivotally connected at their rear ends to the vehicle and having their front ends extending inwardly at an angle, means 'for connecting one of said fronty ends along its length to the scraper blade, a connector for connecting the front end of. the other lever to the other end of said blade to provide an angular disposition of saidblade relative to its path of travel, and means for independently raising and lowering said levers to adjust the angle of said blade 'in a vertical plane relative to the surface over which it travels, and brace means for connecting the ends of the blade with said levers.

2. The combination with a'vehicle, of a scraper blade adapted to work at the front of the vehicle,

' levers 'pivptally connected at their rear ends ,to

the vehicle and having their front ends extendj ing inwardly atan angle, means for connecting said front ends to the central part of said blade,

braces connecting said levers to the ends of said blade, and means for independently raising and lowering said levers to adjust the angle of said blade in a vertical plane relative to the surface over which it travels.

3.v The combination of `va vehicle having an operators seat at the rear portion, oi a scraper blade adapted to work at the front of the vehicle, a main framefor said vehicle, traction means for said vehicle including frames, levers on opposite sides of the vvehicle pivotally connected at their rear ends to said traction frames and having their front ends operatively connected to said blade, ahoisting frame pivotally mounted on` each traction frame and operatively connected with the lever at that side of the vehicle, an hydraulic cylinder connected with Aeach hoisting frame and pivotally connected with ,the main,

frame of the vehicle below the operators seat for independently raising and lowering said hoisting frames to vary the angle of said blade-in a vertical plane relative to the -surface over which it travels.

JOSEPH H. 'MEER