High rail excavator
First Claim
Patent Images
1. An excavator, comprising:
- a pair of tracks mounted in opposed spaced relation, each one of the pair of tracks having an inner peripheral edge, the inner peripheral edges spaced apart a first distance;
a high rail mechanism interposed between the inner peripheral edges and having a pair of wheels spaced apart by a second distance; and
wherein the first distance is greater than the second distance, such that the pair of wheels are interposed between the tracks; and
wherein the pair of wheels are behind a leading edge of the tracks.
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Accused Products
Abstract
A high rail excavator is provided. The high rail excavator includes at least one high rail mechanism to elevate the high rail excavator relative to the rails of a railroad track. The high rail mechanism is disposed within an envelope of the tracks, thereby increasing the maneuverability and safety of the high rail excavator. The high rail mechanism includes a power control arrangement that integrates with a power supply of the excavator so that an additional power supply dedicated to the high rail mechanism is not required.
3 Citations
15 Claims
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1. An excavator, comprising:
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a pair of tracks mounted in opposed spaced relation, each one of the pair of tracks having an inner peripheral edge, the inner peripheral edges spaced apart a first distance; a high rail mechanism interposed between the inner peripheral edges and having a pair of wheels spaced apart by a second distance; and wherein the first distance is greater than the second distance, such that the pair of wheels are interposed between the tracks; and wherein the pair of wheels are behind a leading edge of the tracks. - View Dependent Claims (2, 3)
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4. The excavator of 1, wherein the first distance is at least about 4 feet, 8½
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5. An excavator, comprising:
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a pair of tracks mounted in opposed spaced relation, each one of the pair of tracks having an inner peripheral edge, the inner peripheral edges spaced apart a first distance; a high rail mechanism interposed between the inner peripheral edges and having a pair of wheels spaced apart by a second distance; and wherein the first distance is greater than the second distance, such that the pair of wheels interposed between the tracks; and wherein each one of the pair of tracks has an outer peripheral edge, and each one of the pair of tracks is supported by a track support structure of the excavator, each track support structure having inner and outer peripheral edges, wherein the inner peripheral edge of each one of the pair of tracks extends beyond the inner peripheral edge of the track support structure supporting the track by a first overhang distance, and wherein the outer peripheral edge of each one of the pair of tracks extends beyond the outer peripheral edge of the track support structure supporting the track by a second overhang distance, the first overhang distance being less than the second overhang distance.
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6. A high rail mechanism, comprising:
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an upper mount; a lower mount; a pair of wheels carried by the lower mount; a linkage connected between the upper and lower mounts; an actuator operably connected to the linkage, the actuator operable to move the lower mount and the wheels relative to the upper mount and in a first direction away from the upper mount, and move the lower mount and the wheels relative to the upper mount in a second direction toward the upper mount; and wherein linkage includes a first scissor linkage, the first scissor linkage having a first link and a second link, the first link connected between the upper mount and the second link, the second link connected between the first link and the lower mount, the first and second links having a first common connection point. - View Dependent Claims (7, 8, 9, 10)
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11. A method of affixing a high rail mechanism to an excavator, the method comprising the steps of:
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adjusting a first distance between inner peripheral edges of a pair of tracks in opposed spaced relation to a second distance greater than the first distance; and mounting the high rail mechanism having an overall width less than the second distance to the excavator between the inner peripheral edges. - View Dependent Claims (12, 13, 14, 15)
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Specification