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  manager@autopartslq.com

A telescopic tripot universal joint comprises an inner drive member which has three radial trunnions, an outer drive member which has three radial drive channels and three drive assemblies which comprise drive blocks, bearing rollers and cage structure to retain the bearing rollers which is attached to the drive block in a fixed relationship. The radial trunnions have outer radial projections which are disposed in outer radial grooves of the radial drive channels and engage radial walls in the member and prevent the drive assemblies from engaging or bottoming out on an inner end wall of the outer drive member.

A telescopic tripot universal joint comprising:

a first drive member which has a first longitudinal axis and three radial drive channels which are equally spaced at substantially 120 degrees from each other and which extend in the longitudinal direction,

a second drive member which has a second longitudinal axis and three radial trunnions which are equally spaced at substantially 120 degrees from each other and which are disposed in the respective radial drive channels of the first drive member,

three drive assemblies which are disposed in the respective radial drive channels and pivotally mounted on the respective radial trunnions and which include a drive block, bearing rollers disposed between the drive block and the radial drive channel in which the drive block is disposed, and cage means for retaining the bearing rollers which is attached to the drive block in a fixed relationship, and

means to limit the inward stroke of the second drive member with respect to the first drive member which comprises portions of the radial trunnions which are spaced from the drive assemblies in the radial direction and cooperating portions of the first drive member which are also spaced from the drive assemblies in the radial direction.

A telescopic tripot universal joint comprising:

a first drive member which has a first longitudinal axis and three radial drive channels which are equally spaced at substantially 120 degrees from each other and which extend in the longitudinal direction,

a second drive member which has a second longitudinal axis and three radial trunnions which are equally spaced at substantially 120 degrees from each other and which are disposed in the respective radial drive channels of the first drive member,

three drive assemblies which are disposed in the respective radial drive channels and pivotally mounted on the respective radial trunnions and which include a drive block, bearing rollers disposed between the drive block and the radial drive channel in which the drive block is disposed, and cage means for retaining the bearing rollers which is attached to the drive block in a fixed relationship, and

means to limit the inward stroke of the second drive member with respect to the first drive member which comprises a radial groove in each drive channel which ends short of the drive channel in the longitudinal direction and a radial projection on each radial trunnion which is disposed in one of the radial grooves.

A telescopic tripot universal joint comprising:

a first drive member which has a first longitudinal axis and three radial drive channels which are equally spaced at substantially 120 degrees from each other and which extend in the longitudinal direction,

a second drive member which has a second longitudinal axis and three radial trunnions which are equally spaced at substantially 120 degrees from each other and which are disposed in the respective radial drive channels of the first drive member,

three drive assemblies which are disposed in the respective radial drive channels and pivotally mounted on the respective radial trunnions and which include a drive block having a continuous roller track, a full complement of bearing rollers disposed on the continuous roller track for recirculation along the continuous roller track, and cage means for retaining the bearing rollers which is attached to the drive block in a fixed relationship, and

means to limit the stroke of the second drive member with respect to the first drive member in the inward direction which comprises a radial groove in each drive channel which has an end wall which is spaced from an inner end wall of the first drive member in the longitudinal direction and a radial projection on each radial trunnion which is disposed in one of the radial grooves and which engages the end wall of the radial groove in which it is disposed so that the drive assemblies cannot engage the inner end wall of the first drive member.

The telescopic tripot universal joint as defined in claim 3 wherein the radial groove in each drive channel has a longitudinal wall and wherein the radial projection on each radial trunnion which is disposed in one of the radial grooves is spaced from the longitudinal wall means of the radial groove in which it is disposed when the tripot universal joint is at zero angle to permit orbiting of the center of the second drive member during operation of the universal joint at a angle.
The telescopic tripot universal joint as defined in claim 3 wherein the radial projections have termini which are spaced from the longitudinal walls in the radial direction when the tripot universal joint is at zero angle and the radial grooves in the drive channels are larger then the radial projections in the circumferential direction so that the center of the second drive member is free to orbit during operation of the tripot universal joint at an angle.
A telescopic tripot universal joint comprising:

an outer drive member which has a first longitudinal axis and three radial drive channels which are equally spaced at substantially 120 degrees from each other and which extends in the longitudinal direction,

an inner drive member which has a second longitudinal axis and three radial trunnions which are equally spaced at substantially 120 degrees from each other and which are disposed in the respective radial drive channels of the outer drive member,

three drive assemblies which are disposed in the respective radial drive channels and pivotally mounted on the respective radial trunnions and which include a drive block having a continuous roller track, a full complement of bearing rollers disposed on the continuous roller track for recirculation along the continuous roller track, and cage means for retaining the bearing rollers which is attached to the drive block in a fixed relationship, and

means to limit the inward stroke of the inner drive member which comprises an outer radial groove in each drive channel which has a longitudinal wall and an end wall which is spaced from an inner end wall of the outer drive member in the longitudinal direction and a radial projection on each radial trunnion which is disposed in one of the outer radial grooves and which engages the end wall of the outer radial groove in which it is disposed so that the drive assemblies cannot engage the inner end wall of the outer drive member, the radial projection on each radial trunnion being spaced from the longitudinal wall of the outer radial groove in which it is disposed when the tripot universal joint is at zero angel to permit orbiting of the center of the inner drive member during operation of the universal joint at an angle.

The telescopic tripot universal joints as defined in claim 6 wherein the radial projections have temini which are spaced from the longitudinal walls in the radial direction when the tripot universal joint is at zero angle and the other radial grooves in the drive channels are larger than the radial projections in the circumferential direction so that the center of the inner drive member is free to orbit during operation of the tripot universal joint at an angle.