Press fitted flexural pivot joint

A flexural pivot joint includes two pivoting members, which may be levers of a pivotal hand tool, and two substantially identical flexible blade elements, each substantially Z-shaped and having opposite ends respectively connected to the pivoting members. In particular, each blade end has an enlarge...

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Bibliographische Detailangaben
Hauptverfasser:	KRIVEC, BERT
Format:	Patent
Sprache:	eng
Schlagworte:	CUTTING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HAND CUTTING TOOLS HAND TOOLS HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR MANIPULATORS PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS SEVERING TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING TRANSPORTING
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Beschreibung
Zusammenfassung:	A flexural pivot joint includes two pivoting members, which may be levers of a pivotal hand tool, and two substantially identical flexible blade elements, each substantially Z-shaped and having opposite ends respectively connected to the pivoting members. In particular, each blade end has an enlarged coupling portion adapted to be press-fitted in a groove which may be formed either directly in the lever member or in a bushing which is fixed to the lever member. Each bushing may be either a full cylinder or a split cylinder. In one embodiment the joint includes, in addition to the Z-shaped elements, two non-identical flexible elements, the four elements being equiangularly spaced. The grooves and coupling portions may be complementarily shaped, with each groove having a bead receivable in a recess in the coupling portion to inhibit relative rotation.