Labor-saving stapler

Abstract

The invention discloses a labor-saving stapler which comprises a base assembly, a binding assembly and a staple assembly. The tail of the base assembly, the tail of the binding assembly and the tail of the staple assembly are connected through a first pin shaft in a hinged manner. The labor-saving stapler further comprises a labor-saving assembly formed by connecting a lever support, a lever arm,a plastic shell upper cover and the like. Locating shaft rings of lower connecting holes formed in the lever support are in buckled connection with locating hook grooves of supporting pieces arrangedon a metal base in the base assembly. Upper connecting holes formed in the lever support are hinged to first pin shaft holes formed in an upper press binding plate in the staple assembly. Pin shaft holes formed in the tail of the lever arm are fixedly connected with the two ends of a pin shaft in sliding connection in transverse sliding groove holes formed in the tail of the upper press binding plate in the staple assembly. Upper cover connecting holes formed in the tail of the plastic shell upper cover are hinged to the first pin shaft. The labor-saving stapler of a three-stage lever combinedstructure is formed after the above components are connected and combined, when the labor-saving stapler is used for binding, labor is saved by multiple times relative to a common stapler, and the binding effect is good.

Description

technical field [0001] The invention relates to office supplies, in particular to a labor-saving stapler. Background technique [0002] Stapler is a kind of office supplies commonly used by people, mainly used for binding multiple pages of paper together for easy preservation. The traditional stapler structure includes a base assembly, a binding assembly and a staple assembly hingedly connected to the base assembly, the head of the staple assembly is provided with a stapler, and the head of the base below the stapler is provided with a lower staple groove. When binding paper, the head of the upper cover of the staple assembly of the hand-pressed stapler makes the staple piece press down the staples contained in the staple box of the binding assembly and penetrate the paper, and then the staples move toward the Fold in or out to finish binding the paper. This kind of stapler completely relies on the direct pressure of the hand during the binding process, which requires a la...

AI Technical Summary

Problems solved by technology

This kind of stapler completely relies on the direct pressure of the hand during the binding process, which requires a large force. Long-term use will easily cause fatigue and pain in the user's hands, especially when binding a lot of paper, if the force of the hand When it is less than the required pressing force, it will cause the staples to bend or fail to penetrate the paper, affecting the binding effect

Images