MODULAR PAPER PUNCH

By Dr. R.L.SANKAR LAL

Nowadays we expect our office tools to be more compact and multi-functional. The proposed project is a typical paper punch, which emphasizes primarily on reducing the size and weight of the commonly used conventional ‘Single hole paper punch’. The uniqueness of this modular punch is its compactness, ease of handling, ease of use, multi-functional and cost effective. This modular paper punch is designed based on the principle of compound lever mechanism as in nail clippers, which uses minimum pinch force exerted by thumb to piece a hole, rather than plier mechanism, and hence the entire design is becoming more compact. A punching head attached at the upper jaw is forced through a die on the lower jaw through a lever arm, which is gripped in the hand. As the mild pressure is applied to the lever arm by thumb, it punches the papers.

As an additional feature, a yarn scissor is proposed to be attached to the modular paper punch, riveted at the other end. A yarn scissor is generally used for cutting the threads, and used to cut the edge of the cloth to initiate tear. This arrangement may also be utilized even for hard cutting such as clipping the excessive length of the plastic spiral driven through a set of punched holes in soft spiral binding and any more other applications.

 

 

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