Invention Grant
- Patent Title: Four-bar linkage hinge with improved opening mechanism
- Patent Title (中): 四杆联动铰链具有改进的开启机制
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Application No.: US94885Application Date: 1993-07-22
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Publication No.: US5373609APublication Date: 1994-12-20
- Inventor: Franco Ferrari , Carlo Migli
- Applicant: Franco Ferrari , Carlo Migli
- Applicant Address: ITX Lecco
- Assignee: Ferrari; Franco
- Current Assignee: Ferrari; Franco
- Current Assignee Address: ITX Lecco
- Priority: ITXMI92U000779 19920807
- Main IPC: E05D11/10
- IPC: E05D11/10 ; E05D15/32
Abstract:
A four-bar linkage hinge comprises two fastening elements (11, 12) with a first (14) and a second link (13) pivoted by their ends, respectively, to each fastening element (11, 12). The first link (14) has an extension (20) which rests on a free arm (25) of a spring (21) which reacts with its other end (24) on one of the two fastening elements, and which exerts pressure on said extension (20) in order to rotate the link to shift the hinge from a nearly closed to a closed position. The arm (25) bears a cam surface with a raised area (28) which is traversed by said extension (20) when the hinge is in the nearly open position, to permit the release of the spring (21) on continuation of the opening movement and push the hinge open.
Public/Granted literature
- USD411956S Watch case Public/Granted day:1999-07-13
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