Abrégé

A carpenter square includes a body including a first, second, and third edges. A fence is pivoted to the first edge for movement among first, second, and third positions. In the first and second positions, the fence is normal to the body. In the third position, the fence is coplanar to the body. A hinge assembly pivots the fence to the body and includes a notch in the body, a recess in the notch, and a tab projecting from the fence and fit over the pin for reciprocating and swinging movement. The tab moves between a neutral stance, in which the tab is mis-registered with the recess and disables movement of the fence among the first, second, and third positions, and an advanced stance, in which the tab is registered with the recess and enables movement of the fence among the first, second, and third positions.

Classes IPC  ?

• B43L 7/027 - Règles multiples non ajustables disposées à angle droit
• B43L 7/12 - Équerres articulées
• B43L 13/02 - Appareils à tracer ou dispositifs de dessin pour conserver le parallélisme
• G01B 3/56 - Calibres pour mesurer des angles ou des conicités, p. ex. compas à calibrer conique
• G01C 9/18 - Mesure de l'inclinaison, p. ex. par clinomètres, par niveaux en utilisant des liquides
• G01C 15/00 - Instruments de géodésie ou accessoires non prévus dans les groupes
• B25H 7/00 - Marquage ou traçage des pièces à travailler
• B43L 12/02 - Moyens pour empêcher le glissement magnétiques