| 摘要 |
The present invention comprises a shaft retaining collar and a knob adapted to receive and utilize the collar. The collar is integrally formed with a base portion having a protruding button extending outwardly in one direction and a pair of opposed spring fingers positioned opposite to the button. The collar is adapted to be assembled into a knob or other component to be mounted on a shaft and having an internal cavity sized to accept the collar. An internal, keyhole shaped aperture is formed in the central area of the collar. When so assembled within the knob, the collar may be moved from a first position in which a smaller diameter portion of the aperture straddles a groove formed in the shaft to secure the shaft against relative axial movement and a second position in which a larger diameter portion of the aperture is positioned to allow the shaft to be inserted or retracted.
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