Cabin lifter for a material transfer unit
AssigneeLiebherr-Hydraulikbagger GmbH
InventorsStephan Henkel, Phillip Altvater
Life of this patent
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Abstract
The present disclosure relates to a cabin lifter for a material transfer unit comprising at least one hydraulic cylinder supported in a damped manner. The present disclosure is further directed to a corresponding damping bush for damping the hydraulic cylinder and to a material transfer unit comprising a corresponding cabin lifter.
Claims13
A cabin lifter for a material transfer unit comprising at least one hydraulic cylinder supported in a clamped manner for adjustment of the cabin lifter, wherein the hydraulic cylinder is extendable and retractable along an axis of operation of the hydraulic cylinder, and the hydraulic cylinder is supported via at least one damping bushing at the cabin lifter or at another section of the material transfer unit, the at least one damping bushing having at least one circular first recess positioned radially outward from a first leadthrough and radially inward from an outer perimeter of the damping bushing, the at least one first recess oriented to extend from a lower portion of the damping bushing to an upper portion of the damping bushing, the lower portion opposite the upper portion with the first leadthrough positioned therebetween, wherein the upper portion, the lower portion, and the first leadthrough are oriented along the axis of operation of the hydraulic cylinder, wherein the lower portion and the upper portion each include a web feature oriented along the axis of operation, wherein the damping bushing comprises at least one second recess radially positioned between the first recess and the first leadthrough, wherein the damping bushing comprises at least two symmetrically opposite recesses of said at least one first recess extending in a peripheral direction of the damping bushing, and wherein the damping bushing further comprises at least two of said second recess symmetrically opposed to one another.
A damping bushing for a cabin lifter for a material transfer unit, wherein the cabin lifter comprises at least one hydraulic cylinder supported in a damped manner for the adjustment of the cabin lifter, wherein the hydraulic cylinder is extendable and retractable along an axis of operation of the hydraulic cylinder, and the hydraulic cylinder is supported via at least one damping bushing at the cabin lifter or at another section of the material transfer unit, and wherein the damping bushing comprises a first leadthrough arranged radially centrally wherein the at least one leadthrough is at least partly cylindrical, the at least one damping bushing having at least one circular first recess positioned radially outward from the first leadthrough and radially inward from an outer perimeter of the damping bushing, the at least one first recess oriented to extend from a lower portion of the damping bushing to an upper portion of the damping bushing, the lower portion opposite the upper portion with the first leadthrough positioned therebetween, wherein the upper portion, the lower portion, and the first leadthrough are oriented along the axis of operation of the hydraulic cylinder, wherein the lower portion and the upper portion each include, a web feature oriented along the axis of operation, wherein the damping bushing further comprises at least one second recess radially positioned between the first recess and the first leadthrough, wherein the damping bushing comprises at least two symmetrically opposite recesses of said at least one first recess extending in a peripheral direction of the damping bushing, and wherein the damping bushing further comprises at least two of said second recess symmetrically opposed to one another.
A material transfer unit for a cabin lifter, wherein the cabin lifter comprises at least one hydraulic cylinder supported in a damped manner for adjustment of the cabin lifter, wherein the hydraulic cylinder is extendable and retractable along an axis of operation of the hydraulic cylinder, and the hydraulic cylinder is supported via at least one damping bushing at the cabin lifter or at another section of the material transfer unit, the at least one damping bushing having at least one circular first recess positioned radially outward from a first leadthrough and radially inward from an outer perimeter of the damping bushing, the at least one first recess oriented to extend from a lower portion of the damping bushing to an upper portion of the damping bushing, the lower portion opposite the upper portion with the first leadthrough positioned therebetween, wherein the upper portion, the lower portion, and the first leadthrough are oriented along the axis of operation of the hydraulic cylinder, wherein the lower portion and the upper portion each include a web feature oriented along the axis of operation, wherein the damping bushing further comprises at least one second recess radially positioned between the first recess and the first leadthrough, wherein the damping bushing comprises at least two symmetrically opposite recesses of said at least one first recess extending in a peripheral direction of the damping bushing, and wherein the damping bushing further comprises at least two of said second recess symmetrically opposed to one another.
Dependencies are inferred from the claim text.