Patent ID: 7506862

Claim:
An elastomer bush bearing comprising an inner sleeve ( 1 ), an elastomer bearing body ( 2 ), which surrounds the inner sleeve ( 1 ) and is connected with the inner sleeve by vulcanization and forms an elastomer spring, an outer sleeve ( 3 ) receiving the bearing body ( 2 ) with the inner sleeve ( 1 ), and at least one axial limit stop ( 6 , 6 ′, 7 , 7 ′), which limits the axial compression spring travel of the bearing body ( 2 ) when oscillations are introduced axially in the bearing and which is formed by two stop faces ( 6 , 7 , 6 ′, 7 ′) which face each other in the axial direction (a) and are spaced apart by a gap (s, s′), wherein a first stop face ( 6 , 6 ′) is formed on the bearing body ( 2 ) and a second stop face ( 7 , 7 ′) is formed on the inner sleeve ( 1 ) or on a stop element ( 4 , 4 ′) supported by the inner sleeve ( 1 ), wherein the first stop face ( 6 , 6 ′) and the second stop face ( 7 , 7 ′) are rotatable relative to each other in the circumferential direction of the bearing by an actuator ( 5 ) or displaceable relative to each other in the axial direction (a), wherein their mutual separation as determined by the gap (s, s′) is changeable simultaneously with a corresponding relative motion of the stop faces ( 6 , 6 ′, 7 , 7 ′) effected by a rotation of the actuator, wherein the inner sleeve ( 1 ) comprises two cylindrical sleeve sections ( 1 ′, 1 ″) which slidingly engage with each other and are movable relative to each other in the axial direction (a), wherein a first sleeve section ( 1 ″) is connected with the bearing body ( 2 ) through vulcanization and a second sleeve section ( 1 ′), is displaceable relative to the first sleeve section ( 1 ″) and therefore by a rotation of the actuator also relative to the bearing body ( 2 ) that is connected with the first sleeve section ( 1 ″), the second sleeve section ( 1 ′) includes on at least one axial end the second stop face ( 7 , 7 ′), which in cooperation with the first stop face ( 6 , 6 ′) of the bearing body ( 2 ) located opposite in the axial direction (a) forms the at least one axial limit stop ( 6 , 6 ′, 7 , 7 ′), wherein the first sleeve section ( 1 ″) connected with the bearing body ( 2 ) through vulcanization has on a section protruding axially from the bearing body ( 2 ) a circumferential groove ( 9 ) or channel disposed at a constant axial height (h) along at least a portion of its circumference, with a pin ( 10 ) arranged on the rotatable actuator ( 5 ) guided in the groove or channel, wherein the pin ( 10 ) protrudes through an opening ( 8 ) which extends along a portion of the circumference of the second sleeve section ( 1 ′), with the opening ( 8 ) having a pitch (Δh) relative to the axial direction (a), so that the first and second sleeve sections ( 1 ′, 1 ″) are axially displaced against each other by the pin ( 10 ) during a rotation of the actuator ( 5 ).