초록 ▼

A universal joint comprises an external cup-like element, and a part spherical head located in the element. Three balls are interposed between opposing surfaces of the head and the element and are engaged in pairs of grooves in the head and in the element. The balls are retained in slots in a cage.

A universal joint comprises an external cup-like element, and a part spherical head located in the element. Three balls are interposed between opposing surfaces of the head and the element and are engaged in pairs of grooves in the head and in the element. The balls are retained in slots in a cage. An auxiliary groove is formed in the external element adjacent one of the ball-receiving grooves and is spaced therefrom by a surface having a width less than that of the slots in the cage whereby this surface can be located in one of the slots during assembly of the joint to permit insertion of the cage into the external element.

대표청구항 ▼

In a universal joint, an external cup-like element, an internal element located within the external element, means defining three pairs of opposed grooves formed respectively, in the external and internal elements, said grooves being generally or toroidal form, a spheroidal guide cage having slots,

In a universal joint, an external cup-like element, an internal element located within the external element, means defining three pairs of opposed grooves formed respectively, in the external and internal elements, said grooves being generally or toroidal form, a spheroidal guide cage having slots, three balls each located in a respective one of the slots and engaged in a respective one of the pairs of grooves, and means defining a further groove in the external element, said further groove being spaced from one of said opposed grooves to define therebetween a bearing surface, the width of which is less than that of one of said slots whereby the bearing surface can be introduced into a said slot by a sufficient distance to permit introduction of the cage into the external element.