Ripper assembly for tractor drawn scraper
First Claim
1. In an earth working machine which comprises a scraper having a bowl with a back, a bottom, two sides and a forward cutting edge, a spreader forward of said cutting edge and supported by forward extensions of said sides, a tractor forward of said spreader for pulling said scraper and means for raising and lowering a forward end of said scraper relative to said tractor, a ripper assembly which raises and lowers in fixed relation to said spreader and to said cutting edge on operation of said raising and lowering means comprising:
- a beam suspended generally vertically downwardly fraom said spreader and generally forwardly from said bowl;
a plurality of ripper sockets extending laterally from said beam;
a plurality of ripper shanks held in said sockets;
a means for adjusting the vertical separation between said beam and said spreader;
a pair of telescoping means between said beam and said spreader pivotally attached to a respective one of said beam and said spreader; and
a pair of arms, each pivotally attached at a first end thereof to a respective side of said bowl and attached at a second end thereof to said beam generally at an end thereof, said pair of arms, sides of said bowl and a pair of telescoping means forming a pair of triangular braces for said ripper assembly.
1 Assignment
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Accused Products
Abstract
The invention is concerned with an improvement in a tractor drawn scraper wherein the scraper has a bowl with a back, a bottom, two sides and a forward cutting edge and a spreader forward of the cutting edge and supported by forward extensions of the bowl sides. A tractor is provided forward of the spreader for pulling the scraper and means are provided for raising and lowering the forward end of the scraper relative to the tractor. The improved ripper assembly of the present invention comprises a beam suspended generally vertically downwardly from the spreader and forwardly from the bowl, the beam having a plurality of ripper sockets extending laterally from it. Held within the ripper sockets are a plurality of ripper shanks. A plurality of ripper teeth are generally provided proceeding from the ripper shanks. Means are provided for adjusting the vertical separation between the beam and the spreader.
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Citations
6 Claims
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1. In an earth working machine which comprises a scraper having a bowl with a back, a bottom, two sides and a forward cutting edge, a spreader forward of said cutting edge and supported by forward extensions of said sides, a tractor forward of said spreader for pulling said scraper and means for raising and lowering a forward end of said scraper relative to said tractor, a ripper assembly which raises and lowers in fixed relation to said spreader and to said cutting edge on operation of said raising and lowering means comprising:
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a beam suspended generally vertically downwardly fraom said spreader and generally forwardly from said bowl; a plurality of ripper sockets extending laterally from said beam; a plurality of ripper shanks held in said sockets; a means for adjusting the vertical separation between said beam and said spreader; a pair of telescoping means between said beam and said spreader pivotally attached to a respective one of said beam and said spreader; and a pair of arms, each pivotally attached at a first end thereof to a respective side of said bowl and attached at a second end thereof to said beam generally at an end thereof, said pair of arms, sides of said bowl and a pair of telescoping means forming a pair of triangular braces for said ripper assembly. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification