Cutter with replaceable blade

A technology of blades and knives, which is applied in the field of knives with replaceable blades, can solve the problems of relatively limited materials for making knives and poor reliability, and achieve the effects of easy alignment and insertion into the knives, easy replacement, and simple structure

Pending Publication Date: 2021-01-19
BEIJING BLACKBOX TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to overcome the defects in the prior art that the connection between the blade and the cutter body is either reliable but complicated or simple but poor in reliability, the slag of the cut material is easy to enter the joint gap between the blade and the cutter body, and the material for the cutter body is relatively limited, etc., The invention provides a cutter body made of ordinary materials, the blade is clamped by the clamping force generated by the blade foot, so that the connection of the cutter is convenient and reliable, and the opening direction of the joint surface of the blade and the cutter body is outward and upward, so that the The slag of the cutting material is not easy to enter the joint gap between the blade and the cutter body

Method used

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  • Cutter with replaceable blade
  • Cutter with replaceable blade
  • Cutter with replaceable blade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] refer to figure 1 , figure 2 As shown, the blade-replaceable tool includes a blade 1, a blade body 2, a blade replacement device 3 and a handle 4, the handle 4 is bonded to the upper right side of the blade body 2, and the blade 1 has a blade body 11 at the upper end and a blade edge 12 at the lower end , the film header 13 at the left end and the film tail 14 at the right end, the sheet body 11 is flat and can be used for clamping, and the sheet edge 12 has a sharp edge, which is located at the bottom of the blade 1 and provides a cutting function.

[0056] refer to figure 2 Shown in (a), the cross-section of blade 1 is arrow-shaped, and it has the sheet body side 21 of up-down direction, the blade point 22 of the lowermost part, the blade wing 23 positioned at the middle, the tip wing tip 24 of blade wing 23, The blade tail 25 that connects the wing tip 24 and the side surface 21 of the blade body and is inclined toward the blade tip 22, the angle between the blad...

Embodiment 2

[0063] refer to Figure 7 , Figure 8 As shown, another specific embodiment of a cutter with a replaceable blade disclosed by the present invention, in this embodiment, a transverse protrusion 33 can also be processed on the chip head 13, and the transverse width of the transverse protrusion 33 is not smaller than the chip groove The transverse width of 51; Also can process a longitudinal protrusion 32 on the chip head 13, when sheet body 11 is installed in the sheet groove 51, this longitudinal protrusion 32 is higher than the top surface of sheet groove 51. The transverse protrusion 33 and the longitudinal protrusion 32 block the left end of the sheet groove 51 to prevent the sheet body 11 from moving to the right in the sheet groove 51 .

Embodiment 3

[0065] refer to Figure 9 , Figure 10 , Figure 11 and Figure 12 As shown, another specific embodiment of a cutter with a replaceable blade disclosed by the present invention, in this embodiment, a slot plug 91 can also be processed at the right end of the slot 51; Knife feet 61 are pinched and pressed together to form pinch block 92; a slot slit 93 can also be processed on the top surface of the right end of sheet groove 51, and knife foot 61 on the lower side of sheet groove slit 93 surrounds and passes through sheet groove slit 93 The edge line of the up-and-down direction of the end is bent inwardly to form a slit stopper 94; Extension stop 95. Sheet groove plug 91, pinch block 92, slit block 94, extension block 95 can block sheet groove 51 right end openings, for preventing sheet body 11 from shifting to the right in sheet groove 51.

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PUM

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Abstract

The invention discloses a cutter with a replaceable blade, and belongs to the technical field of cutters. The cutter comprises a blade body, a cutter body, a blade replacing device and a cutter handle, wherein the blade body is in an arrow shape, a blade groove is formed in the lower end of the cutter body, and an opening direction of a combined face of the blade body and the blade groove is in anupward outward direction, so that scraps of cut materials cannot easily enter a gap of the combined face, cutter feet forming the blade groove are bent towards the inner side of the blade groove, thewidth of the lower end of the cross section of the blade groove is smaller than the width of the cross section of a blade main body, when the blade main body is inserted into the blade groove, the blade feet on the two sides of the blade groove are opened outwards by the blade main body, an elastic clamping force is generated inwards by the blade feet to clamp the blade main body, the blade mainbody is prevented from moving or falling off in the blade groove, during the use of the cutter, the blade body may move in the blade groove, and a blade protrusion or a cutter body check block can prevent the blade body from moving. The blade of the cutter can be replaced, and when the blade becomes blunt, the blunt blade can be safely and reliably taken out through the blade replacing device to be replaced with a novel sharp blade.

Description

technical field [0001] The invention relates to the technical field of cutting tools, in particular to a cutting tool with replaceable blades. Background technique [0002] The use of knives has a long history. Traditionally, a knife is generally composed of a handle, a knife body, and a blade, and the knife body and the blade are mostly made into a whole. When knives are used for a period of time, the blade will become dull. In this way, if you want to continue to use the sharp knife, you must either sharpen the knife, or throw it away as a whole and replace it with a new knife. Sharpening the knife is time-consuming and laborious; throwing away the whole knife and replacing it with a new one costs money and wastes resources. [0003] The recent trend is to provide a knife with a replaceable blade, where the body with the handle and the blade are made separately. After the blade is blunt, keep the cutter body with the handle that occupies most of the manufacturing cost ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B26B5/00B26B9/02
CPCB26B5/00B26B9/02
Inventor 孙大海
Owner BEIJING BLACKBOX TECH CO LTD
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