JPS588421Y2 - double-blade special scissors - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to special two-blade scissors that are composed of two upper blades and one lower blade that interlock and interlock with the two upper blades.

Conventionally, it has not been easy to cut the center of a thin plate having a large area, or to cut metal lath for construction, because the plate or the like gets twisted during cutting, which obstructs the forward movement of the scissors.

In addition, post-processing of the cut plates, metal laths, etc. is difficult due to twisting, distortion, etc., and it is necessary to correct them.

In order to solve this problem, the present invention uses scissors that have two upper blades arranged side by side and opposite each other, and a lower blade that engages and intersects the upper blades. In order to smoothly feed the separated plate body diagonally backward and improve the cutting progress efficiency of the scissors, guide grooves of appropriate depth are provided near the pivot parts of the upper and lower blades and diagonally rearward from the base of the lower blade. This pertains to special two-blade scissors that are cut on both sides.

Detailed description will be made based on the drawings of the embodiments. Reference numeral 1 indicates special scissors according to the present invention.

2 is an upper blade composed of two upper blades 2 a and 2 b arranged side by side facing each other, and an upper front blade 2 d formed inside the upper blade 2 CL which integrates the upper blades 2 a and 2 b at the tip portions. .

3 is a lower blade with an appropriate thickness, and lower blades 3 are attached to both corners of the lower blade.
a, 3b, it has a lower front blade 3C at its tip, which intersects with the upper blade 2 using the pivot 4 as a fulcrum, and cuts the object to be cut with the thickness of the lower blade 3.

Reference numeral 5 denotes a guide groove cut near the pivot portion 4 of the lower blade 3, which is cut to an appropriate depth on both sides diagonally backward from the blade base, and the cut and separated plate is inserted into the guide groove. Along the line, quickly send it backward and diagonally downward.

Numerals 6 and 7 are grips connected to the upper blade 2 and lower blade 3, respectively, and a bullet 8 is engaged between the grips 6 and 7, and the upper blade 2 and lower blade 3 are connected to each other.
facilitate opening of

Reference numeral 9 is a latch for connecting and fixing the grips 6 and 7.

As described above, the present invention provides a pair of scissors with two upper blades 2 arranged side by side and one lower blade 3 that engages and intersects with the upper blade 2. Guide grooves 5 of appropriate depth are cut on both sides near the branch 4 and diagonally backward from the base of the lower blade 3, so the lower blade can be cut into the plate, metal lath, etc. with scissors 1. When the cutting progresses with a thickness width of 3, the chips of 3 widths of the lower blade are transferred to both side blades 2a and 2b of the upper blade 2.
The plates, etc. that are discharged upward from the gap and cut and separated are transferred to the lower blade 3.
Along the guide groove 5 cut rearward in the counter-cutting direction (
The cutting process can be carried out smoothly without any interference because the cutting process can be carried out smoothly without any interference.

In addition, by providing front blades 2 d and 3 C on the upper and lower side blades 2 a , 2 b , 3 a , and 3 b , respectively, the cutting chips are shortened into a substantially U-shape, which not only makes it easier to discharge, but also eliminates long chips. The work is not hindered by the entanglement, and the work efficiency and efficiency of the cutting action are greatly improved, and the operator is less fatigued, which is a truly remarkable effect.

[Brief explanation of the drawing]

FIG. 1 is a plan view of scissors according to the present invention. Figure 2 is an enlarged sectional front view of the main parts. FIG. 3 is an enlarged cross-sectional view of the main parts. 2 is an upper blade, 3 is a lower blade, 4 is a pivot portion, and 5 is a guide groove.

Claims (1)

[Scope of utility model registration request] In scissors that have two upper blades that are arranged in parallel and opposite each other and a lower blade that intersects with the upper blade, Special two-blade scissors with guide grooves of appropriate depth cut on both sides toward the rear.