Docket No: PK6865553
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`WHATIS CLAIMEDIS:
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`1. A rubberpadfor a steel track coupled to the steel track formed by connectingaplurality of
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`links and provided with a bushing engaging with a sprocket to allow driving of equipment, the rubber
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`pad comprising:
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`a rubber pad body coupled to an outside ofthe link; and
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`one or more foreign substance discharging grooves formed on an outer surface of the pad
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`body and indentedin the forward or backwarddirection ofthe steel track.
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`2. The rubber pad for the steel track of claim 1, wherein a bottom surface of the foreign
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`substance discharging groove inclines downward from inside to outside, and either side surface of the
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`foreign substance discharging groove widensfrom the inside to the outside.
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`3. The rubberpadfor the steel track of claim 1, wherein the rubber padis provided on either
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`side with fastening holes to which bolts for coupling the rubber padto the link are fastened, and length of
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`the foreign substance discharging groovein the width direction is equal to or less than a distance between
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`the fastening holes.
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`4. The rubberpadfor the steel track of claim 1, further comprising a bushing cover extending
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`Docket No: PK6865553
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`from an outer surface of the pad body toward the adjacent pad body to shield the bushing from the
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`outside.
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`5. The rubberpad for the steel track of claim 4, wherein the bushing cover facesthe foreign
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`substance discharging groove to be accommodatedinside the foreign substance discharging groove.
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`6. The rubberpad for the steel track of claim 5, wherein a predeterminedinterval is formed
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`between the bushing cover and the foreign substance discharging groove when the bushing cover is
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`accommodated inside the foreign substance discharging groove and the interval is 3 to 10 mm in the
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`length, width, and heightdirections of the pad body.
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`7. The rubber pad for the steel track of claim 4, wherein the bushing cover is provided in
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`either a front end or a rear end of the pad body with respectto the driving direction ofthe steel track.
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`8. The rubberpad for the steel track of claim 4, wherein a lower surface of the bushing cover
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`inclines upward from the pad body towardthe outside.
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`9. A rubber padfor a steel track coupled to the steel track formed by connecting a plurality of
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`Docket No: PK6865553
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`links and provided with a bushing engaging with a sprocket to allow driving of equipment, the rubber
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`pad comprising a rubber pad body coupled to an outside ofthe link, wherein
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`a fastening hole to whicha bolt for coupling the rubberpadto the link is fastened is formed in
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`the middle ofthe pad body, and
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`an inner surface ofthe fastening hole is provided with a step portion having one or more steps
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`to facilitate the removal of foreign substancesstuckin the fasteninghole.
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`10. The rubberpad for the steel track of claim 9, wherein a fastening portion to whichthe bolt
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`is substantially fastened is formedinside the fastening hole, and the fastening portion is formed adjacent
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`to an inner surfaceof the fasteninghole.
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`11. The rubber padfor the steel track of claim 10, wherein a fastening portion to which the
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`bolt is substantially fastened is formedinside the fastening hole and the fastening portion is formed in the
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`middle ofthe fastening hole.
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`12. The rubberpadfor the steel track of claim 10, wherein the fastening portion to which the
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`bolt is substantially fastened is formed inside the fastening hole, and an inclining surface connecting an
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`upperend of the fastening portion and an upperendofthe fastening hole is formed.
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`Docket No: PK6865553
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`13. The rubber pad for the steel track of claim 12, wherein the inclining surface radially
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`extends from an upper edgeofthe fastening portion to the upperend ofthe fastening hole.
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`14. A rubberpad fora steel track coupled to the steel track formed by connecting a plurality
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`of links and provided with a bushing engaging with a sprocket to allow driving of equipment, the rubber
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`pad comprising:
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`a rubber pad body coupled to an outside ofthe link; and
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`an iron core provided inside the pad body in the right/left width direction, wherein
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`either end of the pad body is provided with a pad end surface formed in the driving direction
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`of the steel track and a pad inclining surface inclining from front and rear ends of the pad end surface
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`toward the middle ofthe pad body.
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`15. The rubber pad for the steel track of claim 14, wherein either end of the iron core is
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`provided with an iron core end surface extending inparallel with the pad end surface ata first interval and
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`an iron core inclining surface extending in parallel with the pad inclining surface at a secondinterval.
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`16. The rubberpad for the steel track of claim 15, wherein the first and secondintervals are
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`0.5 to 1.5 times the interval between the pad end surface and the iron core end surface formed along a
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`Docket No: PK6865553
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`centerline with respect to the driving direction ofthe pad body.
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