Spring-loaded spectacle hinge |
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| 申请号 | US3644023D | 申请日 | 1970-01-21 | 公开(公告)号 | US3644023A | 公开(公告)日 | 1972-02-22 |
| 申请人 | LUCIANO VILLANI; | 发明人 | VILLANI LUCIANO; | ||||
| 摘要 | An improved hinge construction for spectacles, wherein two components are secured to the frontpiece and respectively the side arms of the spectacles'' frame, the said components comprising cam means and spring-biased cam follower means for providing an elastic resistance to widening apart of the side arms, outside of a given service position, and planar faces complementary arranged for abutting on each other when a given excess-wide position is attained, providing a positive stop to further widening apart. | ||||||
| 权利要求 | 1. A spectacle frame comprising, in combination, a frontpiece having opposite lateral ends; a pair of side arm; first and second hinge components respectively fixed to said opposite ends of said frontpiece and ends of said side arms for connecting said side arms to said opposite ends of said frontpiece tiltably between a folded position substantially parallel to said frontpiece, a service position substantially normal to said frontpiece and an extreme spread position beyond said service position; cooperating cam means and spring-biased follower means for yieldably maintaining said side arms in either said folded or service position, said cam means comprising for each of said side arms a member having a camming surface having a pair of spaced recesses in which said spring-biased follower means respectively engages when the respective side arm is in said folded or in said service position, said member being angularly adjustable to thereby adjust the service position of the side arm; and positive stop means for preventing spreading of said side arms beyond said extreme spread position. 2. A spectacle frame as defined in claim 1, wherein said member is of generally cylindrical configuration and adjustably secured to said first hinge component and fitted for pivotal movement in a bore of said second hinge component to provide a hinge pin for said hinge components. 3. A spectacle frame as defined in claim 2, wherein said first hinge component has a pair of spaced brace portions, said second hinge component has an end portion provided with said bore and being located between said brace portions, said member being angularly adjustable secured to said brace portions. 4. A spectacle frame as defined in claim 3, wherein said first and second hinge components are formed from metal, and wherein one of said planar faces of said stop means is formed between said brace portions of said first hinge component and the other of said planar faces is formed on said end portion of said second hinge component, said planar faces abutting over substantially the whole area thereof against each other when said side arms reach their extreme spread position. |
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