| 摘要 |
A locking headrest support assembly for the back of a vehicle set includes a sleeve, a cap, a spring and a button. The sleeve is lockable within the back of a vehicle seat and has a longitudinal bore for a rod of a vehicle headrest. The cap locks onto the top of the sleeve, and has a longitudinal bore aligned with that of the sleeve when so locked. Alternatively, the cap and sleeve may be combined in one integral piece. The cap has a slot in which the button is disposed in a drawer-like fashion. The slot has two side walls, a rear wall, and a top and a bottom. The side walls each have a notch which defines a ledge. The notches are produced by holes directed into the cap from its underside, so that the holes may not be exposed to view when the locking headrest support assembly os fully assembled. The button has prongs which engage with the ledges and prevent the button from being withdrawn once the prongs have so engaged. The spring is disposed in the slot behind the button and has an elongated base member which crosses the bore when the button is not externally depressed to engage a headrest rod within the bore. The elongated base member is pushed out of the bore when the button is pushed so that the position of the headrest rod may be changed.
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