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US 2006/0217209 A1Published application
Power transmission shaft, power transmission device incorporating the same and method of forming the same
AssigneeJtekt Corporation
InventorsHiroyuki Iwashita, Tadashi Naganawa, Isashi Kashiwagi
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Abstract
A power transmission shaft includes a swaged boot-engaging groove on an outer circumference of thereof. Further, the power transmission shaft includes a reduced diameter portion provided in the vicinity of the boot-engaging groove. The reduced diameter portion is formed by swaging at the same time as the boot-engaging groove is formed.
Claims16
A power transmission shaft comprising:
- a power transmission shaft member;
- and
- a swaged boot-engaging groove on an outer circumference of the power transmission shaft member.
A power transmission device comprising:
- a power transmission shaft including;
- a swaged boot-engaging groove formed on a outer circumference of the power transmission shaft;
- and a seal portion formed on the outer circumference of the power transmission shaft in the vicinity of the boot-engaging groove;
- a boot having an approximately cylindrical shape and including;
- a protrusion protruding from an inner circumference of the boot to come into contact with the boot-engaging groove of the power transmission shaft;
- and a seal portion formed in the vicinity of the protrusion to come into contact with the seal portion of the power transmission shaft;
- and
- a clamp member clamping an outer circumference of the boot at a position which corresponds to the protrusion and the seal portion of the boot so as to urge the boot toward the power transmission shaft.
5 more elements
A power transmission device comprising:
- a power transmission shaft including a boot-engaging groove and a seal portion;
- a constant velocity joint connected to the power transmission shaft;
- a boot positioned for covering a connecting portion between the constant velocity joint and the power transmission shaft and including a protrusion and a seal portion;
- and
- a clamp member positioned for clamping the boot;
- wherein the boot-engaging groove is a swaged groove formed on an outer circumference of the power transmission shaft, the seal portion of the power transmission shaft is formed on the outer circumference of the power transmission shaft in the vicinity of the boot-engaging portion, the protrusion protrudes from an inner circumference of the boot to come into contact with the boot-engaging groove, the seal portion of the boot is formed in the vicinity of the protrusion to come into contact with the seal portion of the power transmission shaft, and the clamp member clamps an outer circumference of the boot at a portion which corresponds to the protrusion and the seal portion of the boot so as to urge the boot toward the power transmission shaft.
3 more elements
A method of forming a power transmission shaft, comprising the steps of:
- providing a power transmission shaft member;
- and
- forming, by swaging, a boot-engaging groove on an outer circumference of a power transmission shaft member.
Dependencies are inferred from the claim text.