Patent ID: 6494573
Filing Date: 2002-12-17
Classification: G02C

Abstract:
A foldable spectacle frame having two lens frames which lie in a plane of lens frames and are connected in opposed relation by a bridge, and two temples which are foldable to a thin form in substantially the same plane as the lens frames without lapping over the lens frames, each of the temples comprising:an auxiliary temple member supported by a pivot including engaging means, the pivot being provided at an outer portion of the respective lens frame, the auxiliary temple member being movable about the pivot in an auxiliary plane of pivotal movement substantially orthogonal to the plane of the lens frame, the auxiliary temple being movable between a folding state and an unfolding state, wherein the auxiliary temple member has a length that is substantially equivalent to a distance extending from the pivot to a lower edge of the lens frame; a main temple member pivoted to the auxiliary temple member at a pivotal end thereof and being rotatable in a main plane of pivotal movement orthogonal to the auxiliary plane of pivotal movement of the auxiliary temple member, the main temple being rotatable between a folding state and an unfolding state; moving means provided at the pivotal end of the main temple member; a slide member slidably provided within the auxiliary temple and having a length permitting a base end thereof to project from the auxiliary temple member, the slide member being slidable between an engaging position and a disengaging position, and engageable with the engaging means of the pivot when the auxiliary temple member is at the unfolding state; biasing means for biasing the slide member away from the pivot when folding the spectacle frame; whereby the moving means will move the slide member to engage with the engaging means of the pivot from the disengaging position to the engaging position when the main temple member is brought into the unfolded state, and the biasing means disengages the slide member from the pivot at the engaging position when folding the spectacle frame.