US2177936A - Track shoe - Google Patents

Description

INVENT OR.

l Oct- 31, 1939- .11. H. EsTRs TRACK SHOE' Filed June 7, 1937 Peteetedoee 31, 193e UNITED' STATES r arrms 'rasen suon Joseph H. Eaters, Milwaukee. Wis.. assignor to Harnischfeger Corporation, Milwaukee, Wis., a

Wisconsin corporation of sppuesaon :une 1. las?, semi No. 14cm' 10mm. (Cl. 305-10) t 'I'he invention relatesto vtrack shoes for endless treads for vehicles such as excavators.

The main object of the invention is to improve on that type of track shoe in which transversely extending spaced ribs are provided with means passing through the webs between the ribs for y fastening the shoe to the linksforming part of l`the endless chain that passes over the guide and drive sprockets ofI the tread structure. Accordl0 ing to the present invention a. shoe of the. above type is modied and made capable of use on heavy excavator machinery by integrally attachingto the tops of the ribs a plate which is welded thereto by plug welding at spaced points along 15 said ribs, the plate also being provided with openings in line with the means for fastening the shoe body to its carrying link.

The invention further eenden 1n the several.

features hereinafter set forth and' more partici;-

2'() larly dened by the, claim at the conclusion hereof.

In the drawing:

Fig. 1 is a side elevation view of a-,porticn of the track structure embodying the invention with.

25 other portions shown in dotted;

Fig, 2 is s seien side elevation new er one er the track units; v Illg.3isaplanviewoftheunitwithparts broken sway; so Fig; 4 is a detail sectional view taken on the -line l-l oi' Fig. 3.

Referring to the drawing, theendless treadf track structure comprises a plurality of units,

eachhavingashoeiandapairofsidebarsor gslinkr securedthereto.

Each shoe lis formed of a'member 1 and a member s. The member 1 1e of renee steel new; ings flat bottom s and channelied upper providing spaced transversely disposed ribs I l, 4g there being a centrally disposed rib and ribs at the ends of said member and transversely disposed-tongues u ens-lathe tongue 1| ofone shoe intermeshing with atongue I2 of the 'other shoe in the assembled conditionot the track.

Themember! oftheshoeisintheform ota fiat plate coextensive with the ribbedvportion of the member 1 and securedv thereto by P1118 weids It, the welding metal being depositedfin openv ings Il formedintheplateandbeinginwe'iding -5 contact with the' sides of said openings and the top portions of said ribs Il.

The'side bars B have apertured end-portions.

I1 offset relative to each other and carrying pins Il which extendbeyondssidlinksand are adapted to engage the teeth of the drive and guide sprockets I5 and Il.

The'tops of the bars Gare provided with spaced tapped holes Il to receive the shoe fastener bolts that passthroughspacedopenings Zivinthe webportionsilofthememberlandareinsertv able through enlargedA openings I3 in the top tread member I, said bolts providing for the removal andreplacement of the shoe.

.structure isweli adapted for. supporting heavy excavating machinery, .such as cranes and shovels. Idesireittobeunderstoodthatthisinvention is not-tobeiimitedto any particular form orarrangementofpartsexceptinsoiarassuch limitations are included, in the claim. so WhatIclaimasmyinventionis: l In a track` shoe construction. the combination withcarryingmeanaotashoehavingapartprovided with spaced transverseiydisposed ribs, a plateeoextensivewiththetopsofsaidribsand 'integrally connected withjhe @om f' said liills and provided withv openings." bolts inssrtabie through said openings and'extending through lopeningsin'theflrst named part ofsaidsboe f between said ribs .and having threaded engagew ment withsaidcsrryingmeans.

Jossmnss'rms.

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