Assembly with relatively displaceable members

Claim 2

An assembly comprising an inner and an outer cylindrical member, respectively, the inner member being relatively axially displaceable along the inner peripheral surface of the outer member, means for axially displacing said inner member relatively to said outer member, the inner member being provided with an annular peripheral recess, a resilient split ring being lodged in the recess fully retractable into same but elastically biased in radial direction toward the inner peripheral surface of the outer member, the recess having a first flank and a second flank, the first flank lying in a radial plane of the inner member, the second flank extending in a plane oblique to the longitudinal center line of the inner member, forming an angle with the longitudinal center line of the inner member that is less than 30°, the first flank bearing equatorily on the ring upon axial displacement of the inner member relative to the outer member in a first direction, and, upon axial displacement of the inner member relative to the outer member in a direction opposite the first direction, said ring being displaced from bearing upon said first flank and being moved along said second flank such that the second flank applies to the ring a substantially radial outward jamming pressure toward the inner peripheral surface of the outer member whereby the ring is jammed like a wedge and locks the inner member against axial displacement in any direction.

Claim 3

An assembly as defined in claim 1, wherein the ring is provided with a high-frictional surface toward the inner peripheral surface of the outer member.

Claim 4

An assembly as defined in claim 1, wherein the ring is provided with a low-frictional surface toward the second flank of the recess.

Claim 5

An assembly as defined in claim 1, wherein the second flank of the recess is provided with a low-frictional surface.

Claim 6

An assembly as defined in claim 1, wherein the ring has circular cross-section.

Claim 7

An assembly as defined in claim 1, wherein the ring has oval cross-section.

Claim 8

An assembly as defind in claim 1, wherein the ring has wedge-shaped cross-section.

Claim 9

An assembly as defined in claim 1, wherein the ring has differently sized bearing surfaces against the inner peripheral surface of the outer member and against the second flank.

Claim 10

An assembly as defined in claim 1, wherein the second flank has a first annular beveled surface one annular inner end edge of which lies in the plane of the first flank and having a second annular cylindrical surface with less diameter than that of the inner member, one annular outer end edge of the beveled surface defining one annular end edge of the second annular cylindrical surface.

Claim 11

An assembly comprisng an inner and an outer cylindrical member, respectively, the inner member being relatively axially displaceable along the inner peripheral surface of the outer member, means for axially displacing said inner member relatively to said outer member, the inner member being provided with an annular peripheral recess, a resilient split ring being lodged in the recess fully retractable into same but elastically biased in radial direction toward the inner peripheral surface of the outer member, the outer member being made of softer material than said ring and said inner member, the recess having a first flank and a second flank, the first flank lying in a radial plane of the inner member, the second flank extending in a plane oblique to the longitudinal center line of the inner member, forming an angle with the longitudinal center line of the inner member that is less then 30°, the first flank bearing equatorily on the ring upon axial displacement of the inner member relative to the outer member in a first direction, and, upon axial displacement of the inner member relative to the outer member in a direction opposite the first direction, said ring being displaced from bearing upon said first flank and being moved along said second flank such that the second flank applies to the ring a substantially radial outward jamming pressure toward the inner peripheral surface of the outer member whereby the ring progressively deforms the outer member until the deformed outer member forms a block preventing continued movement of said inner member in the opposite direction.

Claim 12

An assembly comprisng an inner and an outer cylindrical member, respectively, the inner member being relatively axially displaceable along the inner peripheral surface of the outer member, means for axially displacing said inner member relatively to said outer member, the inner member being provided with an annular peripheral recess, a resilient split ring being lodged in the recess fully retractable into same but elastically biased in radial direction toward the inner peripheral surface of the outer member, the outer member being made of softer material than said ring and said inner member, the recess having a first flank and a second flank, the first flank lying in a radial plane of the inner member, the second flank extending in a plane oblique to the longitudinal center line of the inner member, forming an angle with the longitudinal center line of the inner member that is less then 30°, the first flank bearing equatorily on the ring upon axial displacement of the inner member relative to the outer member in a first direction, and, upon axial displacement of the inner member relative to the outer member in a direction opposite the first direction, said ring being displaced from bearing upon said first flank and being moved along said second flank such that the second flank applies to the ring a substantially radial outward jamming pressure toward the inner peripheral surface of the outer member whereby the ring progressively deforms the outer member until the deformed outer member forms a block preventing continued movement of said inner member in the opposite direction.