A retractable office knife

Abstract

The invention discloses a retractable type office knife and relates to the technical field of office cutters. The knife comprises a knife shell, blades and buttons, wherein a plurality of first rectangle plates and second rectangle plates are arranged on one surface of the knife shell, and penetrating holes are formed in one surface of the knife shell; rectangle blind holes are formed in the surfaces of two first rectangle plates respectively; the rectangle blind holes are matched with rectangle columns of the blades; a plurality of penetrating holes are formed in the surfaces of the second rectangle plates; the penetrating holes are matched with limit telescopic devices of the blades; the buttons are fixed to the penetrating holes; a plurality of rectangle columns are arranged on the surfaces of the two sides of each blade respectively; the penetrating holes are formed in one surface of each blade; the limit telescopic devices are fixed to the penetrating holes. According to the retractable type office knife, an oval design is adopted by the blades, a tip portion of a telescopic type office knife does not exist, the blades of the knife are most located in the knife shell, the stress of the blades is relatively even, and the problems that the blades are easy to fracture and scratch hands are solved. The retractable type office knife has the advantages that the knife is convenient to carry, has the retractable function and is large in holding area.

Description

technical field [0001] The invention belongs to the technical field of office knives, in particular to a retractable office knife. Background technique [0002] With the development of science and technology, office knives tend to be miniaturized and refined day by day. At present, the most common ones in life are retractable office knives and pencil sharpeners. The emergence of telescopic office knives is convenient for people to use in office. When in use, press to push out the blade, and when not in use, press to retract. Yet such retractable office knife and pencil sharpener all have a safety problem, because the length that blade stretches out is longer, when easily appearing in use intensity height, the problem that blade is easy to break and scratches. Also when in use, the front section of the blade is relatively sharp, and it is easy to injure people and feet if it is accidentally dropped on the ground. When the knife needs to cut a thicker carton, the hand needs...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a retractable office knife, through the oval design of the blade and the effect of the small knife cover, it solves the problem that the existing blade is easy to break and scratch the hand, and the hand needs to be pressed on the knife back of the blade. Problems that cause injury and pain

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