Holding structure of spectacle lens, repair method for the same, and spectacles
AssigneeHoya Corporation
InventorYasushi Sakai
Life of this patent
Estimating the term…
Abstract
A method is provided for securely holding a spectacle lens. Without using screwing members such as a screw and a nut, and extra parts such as a bush, a cylindrical pin and a slip-off preventive pin, a spectacle lens can surely be held. A taper pin is provided projecting on a lens holding member for holding a spectacle lens, and a taper hole having approximately the same size as the taper pin is provided on the spectacle lens. The taper pin is directly press-fitted into the taper hole, thereby holding the spectacle lens by a press-contact between an inner circumferential surface of the taper hole and an outer circumferential surface of the taper pin. The taper pin is press-fitted in a thickness direction of the spectacle lens.
Claims13
A manufacturing method of a spectacle, which is a manufacturing method of a rimless spectacle for holding a spectacle lens by a lens holding member of a spectacle frame, wherein a taper pin is provided projecting on the lens holding member, said manufacturing method comprising the steps of:
- boring a taper hole having approximately the same taper size as the taper pin, on or through the spectacle lens;
- and
- directly press-fitting the taper pin into the taper hole, so as to hold the spectacle lens by a press-contact between an inner circumferential surface of the taper hole and an outer circumferential surface of the taper pin.
Dependencies are inferred from the claim text.