US 3,985,458 A · Locking device

Abstract

A locking device especially adapted to secure relatively movable concentric members together. The device is particularly useful for locking a bearing on a shaft or within a housing. Broadly, the device includes a locking part disposed between first and second concentric members and biased into a frictional engagement with a first of the members so that when such member moves relative to the second member, the locking part is moved frictionally engaging the second member for locking the members together. In one form of the locking device a coil spring is wound about and frictionally engages a first member within a second member and has a tang engageable with a recess in the second member for interlocking the members responsive to rotation of the first member. Another embodiment of the locking device includes an arcuate-shaped spring having wedge portions engaging a first member within a recess of the second member. The recess of the second member is defined by eccentric arcuate locking surface portions converging toward the first member whereby the locking part is moved into wedging relationship between the first and second members for interlocking such members.

Claims8

Dependent claims

A locking system for coupling two concentric relatively moveable members together responsive to a force applied to one of said members comprising:

a first member;
a second member concentrically disposed about said first member, said second member having an internal recess extending about said first member and a slot opening into said internal recess;
and a locking part biased to frictional engagement with said first member comprising a coil spring wound about said first member and having a tang portion in the form of a central kink disposed in said slot in said second member for engaging said second member and a plurality of coils on each side of said central kink, the coils on one side gripping said first member responsive to a first direction of rotation of one of said members and the coils on the other side gripping said first member responsive to rotation of said one of said

A bearing locking device for locking an inner race of a bearing on a shaft comprising:

means providing an internal annular recess within said inner race of said bearing;
and locking means comprising a coil spring within said recess of said inner race around at least a portion of said shaft, said locking means being biased into frictional engagement with said shaft and being movable by rotation of said shaft to a position between said shaft and said race for interlocking said shaft and said race.

Dependencies are inferred from the claim text.

Locking device

Life of this patent

Locking device

Life of this patent

Abstract

Claims8