초록 ▼

A cutting frame for use in a curd vat, which cutting frame comprises substantially parallel frame girders, between which is situated a lattice formed from longitudinal knives and transverse knives, of which the transverse knives are mounted on the frame girders by welding and have aligned openings,

A cutting frame for use in a curd vat, which cutting frame comprises substantially parallel frame girders, between which is situated a lattice formed from longitudinal knives and transverse knives, of which the transverse knives are mounted on the frame girders by welding and have aligned openings, in which the longitudinal knives are received, wherein the longitudinal knives are strip-shaped knives having a length dimension and a width dimension and having at least one sharp cutting edge extending in the length dimension, which cutting edge is formed by at least one obliquely ground cutting face, wherein the width of the longitudinal knives is smaller than the corresponding dimension of the openings of the transverse knives, and wherein means are provided for substantially preventing displacement of the longitudinal knives in the length dimension, wherein at least a number of openings of at least a number of transverse knives is provided with supporting elements which substantially lock the longitudinal knives both in lateral direction and in the width dimension of the longitudinal knives, while the supporting elements leave the sharp cutting edge clear.

대표청구항 ▼

I claim: 1. A cutting frame for use in a curd vat, said cutting frame having substantially parallel frame girders, between which is situated a lattice formed from longitudinal knives and transverse knives, of which the transverse knives are mounted on the frame girders by welding and have aligned o

I claim: 1. A cutting frame for use in a curd vat, said cutting frame having substantially parallel frame girders, between which is situated a lattice formed from longitudinal knives and transverse knives, of which the transverse knives are mounted on the frame girders by welding and have aligned openings, in which the longitudinal knives are received, wherein the longitudinal knives are strip-shaped knives having a length dimension and a width dimension and having at least one sharp cutting edge extending in the length dimension, which cutting edge is formed by at least one oblique cutting face, wherein the width of the longitudinal knives is smaller than a corresponding dimension of the openings of the transverse knives, and wherein the longitudinal knives are prevented from being substantially displaced in the length dimension, said cutting frame comprising: projections formed in at least a number of openings of at least a number of transverse knives, the projections contacting opposing faces of a longitudinal knife including the at least one oblique cutting face such that the cutting edge remains clear and to substantially lock the longitudinal knife in the lateral direction and the width dimension. 2. A cutting frame according to claim 1, wherein the projections extend from edges of said number of openings of said number of transverse knives and lie in a plane of the transverse knives. 3. A cutting frame according to claim 2, wherein the projections are rounded off at least at a location of contact with the longitudinal knives. 4. A cutting frame according to claim 2, wherein the projections have been sharpened at least at a location of contact with the longitudinal knives. 5. A cutting frame according to claim 1, wherein the projections include at least one pair of projections abutting on opposite sides against a longitudinal knife. 6. A cutting frame according to claim 5, wherein the projections of at least one pair are situated substantially straight opposite each other. 7. A cutting frame according to claim 1, wherein the projections include at least two projections which contact the longitudinal knife on opposite sides of the knife at locations closer to an other edge of the longitudinal knife than the cutting edge, the other edge being located opposite the cutting edge. 8. A cutting frame according to claim 7, wherein the at least two projections which contact the longitudinal knife closer to the other edge comprise at least one projection supporting the longitudinal knife at the other edge. 9. A cutting frame according to claim 7, wherein the longitudinal knife is supported by way of the other edge situated opposite the cutting edge on a section of the opening in the transverse knife that extends upwards between two lobes of the opening. 10. A cutting frame according to claim 1, wherein said number of openings comprises at least a number of openings with an upper portion that extends from the projections situated near the cutting edge of the longitudinal knives as far as a nearby cutting edge of the transverse knife. 11. A cutting frame according to claim 8, wherein a longitudinal knife is supported at the other edge by a section of the edge of the opening in the transverse knife that extends substantially transversely to the other edge. 12. A cutting frame according to claim 1, wherein the projections form an integral part of the transverse knives in that the projections form part of the openings. 13. A transverse knife for a cutting frame according to claim 1, provided with at least one opening designed with projections for a longitudinal knife. 14. A curd vat provided with at least one cutting frame according to claim 1.