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Craft utility knife

A technology of craftsmanship and knife bar, applied in the field of utility knives, can solve the problem that utility knives do not have a protective function, etc., and achieve the effect of high safety

Inactive Publication Date: 2020-11-27
杭州富纯实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional utility knife does not have the protection function in the non-use state

Method used

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  • Craft utility knife
  • Craft utility knife
  • Craft utility knife

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] The accompanying drawings are all schematic diagrams of the implementation of the present invention, so as to understand the principle of structural operation. The specific product structure and proportional size can be determined according to the use environment and conventional technology.

[0040] Such as figure 1 , 2 , shown in 4, it comprises tool bar 1, inner rod 9, bolt 12, ring sleeve A15, blade 17, driving lever A18, spring A19, the telescopic block 20 that is made up of mutually socketed overcoat A21 and limit block A23, Spring B26, cylinder block 37, spring D40, wherein as Figure 6 As shown, a round groove A2 is opened on one end of the tool bar 1; figure 1 , 3 As shown, the inner rod 9 is axially slidably fitted in the circular groove A2, and the spring A19 for resetting the inner rod 9 is installed in the circular groove A2; Figure 5 , 7 As shown, the bolt 12 with the collar A15 nested on the screw rod cooperates with the internally threaded hole 10...

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PUM

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Abstract

The invention belongs to the field of utility knives, and particularly relates to a craft utility knife. The craft utility knife comprises a knife rod, an inner rod, a bolt, a ring sleeve A, a blade,a shifting rod A, a spring A, a telescopic block composed of an outer sleeve A and a limiting block A which are connected in a sleeved mode, a spring B, a cylindrical block and springs D, wherein a circular groove A is formed in the end face of one end of the knife rod. When a child with short height holds the craft utility knife at the edge of a workbench, the child can only hold the suspended cylindrical block exposed out of a workbench board by hands due to height limitation, and the heavy knife rod moves relative to the cylindrical block under the action of self-weight along with the picking up of the craft utility knife, so that the limiting block A instantaneously relieves the limitation of the contraction of the inner rod into the circular groove A; and the inner rod drives the blade to instantaneously enter the circular groove A in the knife rod under the pulling of the spring A, so that the injury to the child due to the exposure of the blade after the craft utility knife is taken by the child is avoided.

Description

technical field [0001] The invention belongs to the field of utility knives, in particular to a craft utility knife. Background technique [0002] A utility knife, also commonly known as a carving knife or a wallpaper knife, is a knife used for art and handicrafts, and is mainly used to cut soft things. Don't think that the utility knife is fragile. If you use it incorrectly, the wound caused by the utility knife can also be fatal. Therefore, you must be careful during use (because of the workmanship, the wound caused by the utility knife is not easy to stop bleeding). Small wounds can be used The bandage is solved, but once it is too big or too long or hurts the main blood vessel (such as the artery on the arm), it will cause massive bleeding, and the blood will spurt out like a fountain. If it is not bandaged in time, it may cause shock or even death due to excessive blood loss . [0003] For children who are more playful, utility knives are more dangerous, and children ...

Claims

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Application Information

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IPC IPC(8): B26B1/08B44B11/00B65D55/02
CPCB26B1/08B44B11/00B65D55/02
Inventor 彭莉珊何健洪李丽丽
Owner 杭州富纯实业有限公司