Importance

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Abstract

A durable pivotal connecting device for a table lamp between a base and a supporting post of the lamp having a lampshade and a lamp pipe, the supporting post is connected to a rotation seat located in the base and is pivotably assembled with the durable pivotal connecting device for rotation adjustment of the supporting post; the connecting device includes two sets of curved spring leaves, two connecting rods, a transverse bar and an adjusting bolt. The spring leaves are arciform and symmetrically arranged, and each includes a connecting end and is split to form a slit, a positioning end and an adjustment end; screws are used to lock the connecting ends and the positioning ends of the spring leaves onto the inner wall of the base to pivotably mount the rotation seat; the adjustment ends are connected to the connecting rods and the transverse bar to make association of the two sets of spring leaves. The transverse bar has a guide hole allowing passing through of the stem of the adjusting bolt from outside of the base, in order that the transverse bar is moved up and down by adjustment of the adjusting bolt; the adjustment ends of the spring leaves can be operated to give elastic binding action force on the rotation seat, and durability of the pivot area requiring frequent adjustment between the base and the supporting post can be assured.

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First Claim