Two-way corner punch

Abstract

To provide a corner punch capable of both round cutting of a corner of a chuck bag and step cutting of an opening with a single unit and free from any trouble in storing.SOLUTION: A corner punch includes: a cylindrical movable blade 1 including two types of cut surfaces; a hole-shaped stationary blade 17 capable of cutting a chuck bag by penetrating the movable blade 1; a guide 14 for correctly placing a chuck bag from two directions; and a magnet 30 attached to a body for storage. The corner punch can be used selectively for both round cutting of a corner and step cutting of an opening depending on a direction of inserting a chuck bag thereinto.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a corner punch for cutting paper corners into a round shape. [Background technology]

[0002] Conventionally, corner punches have been used to cut the corners of paper into round shapes as stationery, but they are primarily used for paper products such as documents and photographs, and are used for the single purpose of cutting corners into round shapes. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP2005-074548 Public Relations Summary of the Invention [Problem to be solved by the invention]

[0004] In addition to paper products, other items that require rounded corners in the home include ziplock bags used as packaging for food and supplements. Ziplock bags used for storage can have sharp corners that can injure your hands, depending on the material and thickness. In addition, when you first open a zip-lock bag, you then have to open and close the zipper. However, because the zipper part is harder than the bag itself, if there is no gap between the front and back edges of the opening, they will fit together tightly, making it very difficult to open.

[0005] These inconveniences are solved by cutting the corners round with a corner punch and cutting the openings with scissors, which is time-consuming, and it is cumbersome to use multiple utensils. It is also a hassle to take utensils in and out of their storage areas while cooking.

[0006] In view of the above, the problem that this invention aims to solve is to provide a corner punch that not only has the function of cutting the corners of zip-lock bags into a round shape, but also has the function of creating a step in the overlapping part of the opening to make the cutting easier to open, making it easy to store. [Means for solving the problem]

[0007] The two-way corner punch of the present invention has a cylindrical movable blade 1 with two types of cutting surfaces, a fixed blade 17 with holes through which the movable blade 1 passes densely, a guide 14 for correctly placing a zip-lock bag 32, and a magnet 30 for attaching the main body to a metal object for storage. Depending on the direction in which the zip-lock bag 32 is inserted, this pair of movable blade 1 and fixed blade 17 can be used to make two types of cuts: one to round the corner portion 33, and one to create a step in the opening 34. Effect of the Invention

[0008] The 2-way corner punch of the present invention has a pair of movable blades 1 and fixed blades 17, each of which has a surface that can round off corner portion 33 of zip-lock bag 32, and a surface that can make a gently curved concave cut to create a step in the overlapping part of opening 34 to make it easier to open.By inserting it into guide 14, which has a surface that matches the part to be cut, two types of cuts can be made easily with one unit, and it can eliminate the discomfort of sharp corners that can injure hands or make zip-lock bags difficult to open, even when they are used repeatedly. Furthermore, since the two functions are combined into one pair of blades, the device can be designed compactly, and the magnet 30 on the back of the device can be attached to a metal part such as a refrigerator, making it easy to store. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view showing the present invention. [Diagram 2] FIG. 2 is an exploded perspective view of FIG. [Diagram 3] FIG. 2 is a cross-sectional view of a movable blade according to the present invention taken along line AA. [Figure 4]FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is an exploded perspective view of FIG. As shown in Figs. 1 and 2, the cover 21 on the top of the main body is heart-shaped in plan view and has an outer frame, the width of which increases towards the rear to accommodate the rear guard. In this embodiment, it is assumed that the product will be designed to be compact enough to be easily held in one hand by a woman, and a magnet 30 is attached to the back of the main body so that it can be attached to metal parts of a refrigerator, etc. In this case, the cover 21 is heart-shaped so that it will always be visible, but it does not look like a tool and is an accent, but it can also be changed to a teardrop shape, circle, or other shape.

[0011] On the left and right sides of the back surface of the cover 21, there are a pair of holders 37 having holes b22 for shafts and holes b23 for spring fixing shafts, each formed as a rectangle with a rounded rear end, and at the tip of the top surface there is a gripping portion a24 that is recessed to make it easy to hold with the fingers, and is treated with multiple grooves or protrusions to prevent slipping.

[0012] FIG. 3 shows the movable blade 1 and its cross-sectional view taken along line AA. As shown in Figures 2 and 3, the movable blade 1 is a cylindrical blade with a bean-shaped cross section, and is arranged so as to be perpendicular to the inside of the hole of the fixed blade 17 and to be able to penetrate closely. The lower inner surface of the cutting edge 4 is sharpened toward the edge, and the vertical length gradually becomes shorter from the lower side a38 toward the center a10 of the blade for openings and the center a42 of the blade for corners.

[0013] The inwardly curved blade on the front side of the main body is a corner blade a2 that cuts corner portion 33 into a round shape as indicated by line 36 in Figure 1, and the outwardly curved blade on the rear side of the main body is an opening blade a3 that cuts opening 34 into a gentle curve as indicated by line 35 in Figure 1. Due to the structure of the zipper bag, the opening 34, which tends to be hard and stick tightly, becomes much easier to open by creating a step, but if the step is cut too deeply, the edge of the cut area does not touch the thumb, making it more difficult to open, so it is essential to be able to cut with only a slight step. Since the movable blade 1 and fixed blade 17 of this embodiment have a bean-shaped cross section, the opening blades a, b3, 18 are curved more gently than the corner blades a, b2, 19, allowing for shallow and wide cuts.

[0014] In order to allow the movable blade 1 to move vertically up and down in conjunction with the cover 21, the shaft 5 penetrates horizontally through the elliptical shaft hole a6, passes through the shaft long hole 10 of the movable blade fixing base 9, and is fixed in the shaft hole b22 of the cover 21.

[0015] 1 and 2, the movable blade fixing base 9 is a hollow box with a bean-shaped hole on the top and bottom through which the movable blade 1 passes, and a long hole 10 for the shaft 5 and a hole 11 for the spring fixing shaft 8 on the left and right walls. The bottom surface is bonded to the top surface of the guide 14, and between the bottom surface and the base 13 there is a gap into which a chuck bag 32 can be inserted.

[0016] 2 is installed behind the movable blade 1 through a spring fixing shaft 8, and this shaft 8 passes through a spring fixing shaft hole a11 in the movable blade fixing base 9 and is fixed in a spring fixing shaft hole b23 in the cover 21. One end of the spring 7 contacts the rear surface of the cover 21 and urges the cover 21 and the movable blade 1, which moves up and down in conjunction with it, upward, while the other end contacts the upper surface of the base 13 and urges them downward, so that the front opening of the main body is always open with the spring fixing shaft 8 as a fulcrum.

[0017] The base 13 shown in FIGS. 1 and 2 has a thick shape, and the front part tapers toward the tip like the cover 21, and the rear part is rectangular and hollow, and the inside serves as the wastebasket 20.

[0018] The fixed blade 17 shown in Fig. 2 has holes that pass through it closely and perpendicular to the movable blade 1, and has a flat shape with the holes as blades, and is fixed flush with the upper surface of the base 13. The cut chips fall directly from the holes into the chip bin 20, so sharp chips do not scatter.

[0019] 1 and 2 has two sides: a corner guide 16 cut so that the corner part 33 can be placed at a 90 degree angle when inserted from the front of the main body, and an opening guide 15 cut so that the edge of the bag can be placed at a 180 degree angle when the opening 34 is opened from the rear of the main body and the front or back side is inserted, and is formed in pair on the left and right of the fixed blade 17 with a height to leave a gap for insertion. By using both sides of this guide 14 appropriately, it can be easily set without making a mistake in the placement location.

[0020] 4 is a perspective view of the underside of the base. As shown in this figure, the tip of the underside of base 13 has a grip b31 that is treated to be non-slip like cover 21, and a magnet 30 is installed on the same plane between the grip b31 and the trash can lid 25, which is opened and closed by pinching knob 26 at the rear.

[0021] In terms of materials, it is desirable that the movable blade 1, fixed blade 17, shaft 5, spring 7, and spring fixing shaft 8 be made of metal, the waste bin lid 25 be made of an elastic material such as rubber or silicone, and the main body be made of hard synthetic resin, but different materials may be used for all of them as long as they are lightweight, durable, and strong.

[0022] Also, thin U-shaped metal rods may be pierced from the front left and right outside of base 13 and hooked onto the tip of cover 21 as a stopper, so that the front opening of the main body can be kept closed at all times.

[0023] Next, the operation of this embodiment when in use will be described. When cutting the corner portion 33 of the zipper bag 32 into a round shape, set it in the corner portion guide 16 from the front of the main body, and apply pressure by pinching the gripping portions a, b 24, 31 of the cover 21 and base 13. The movable blade 1 will then use the spring fixing shaft 8 as a fulcrum to move vertically down the inside of the hole in the movable blade fixing base 9 together with the shaft 5, and while tightly penetrating the inside of the hole in the fixed blade 17, it will gradually move from the sides a, b 38, 39 of the blade to the centers a, b 42, 43 of the corner portion blade, and the portion 36 in Figure 1 will be cut.

[0024] When cutting the opening 34, the mouth of the bag is opened from the rear of the main body, and the rear of the base 13 is sandwiched in the opening guide 15. The gripping portions a, b 24, 31 of the cover 21 and base 13 are pinched and pressure is applied. As described above, the movable blade 1 descends and penetrates closely inside the hole of the fixed blade 17, gradually moving from the sides a, b 38, 39 of the blade to the center a, b 40, 41 of the opening blade, cutting the portion 35 in Figure 1.

[0025] The above describes an embodiment of the present invention, but the object to be cut may be something other than a zipper bag, and the technical scope of the present invention is not limited to the description of the above embodiment, and various modifications and omissions are possible without departing from the gist of the present invention. [Explanation of symbols]

[0026] 1 Movable blade 16 Corner guide 2 Corner blade a 17 Fixed blade 3 Opening blade a 21 Cover 9 Movable blade fixing base 30 Magnet 13 Pedestal 32 Zipper bag 14 Guide 33 Corner section 15 Opening guide 34 Opening

Claims

1. This two-way corner punch has a movable blade (1) having two kinds of cutting surfaces, a fixed blade (17) having holes through which the movable blade (1) densely penetrates, a guide (14) for correctly placing a zipper bag (32), and a magnet (30) for attaching and storing the main body, and can use two kinds of cutting depending on the direction in which the zipper bag (32) is inserted.

2. The two-way corner punch according to claim 1, wherein the movable blade (1) is a cylindrical blade that moves up and down to cut the inside of the hole of the hole-shaped fixed blade (17) by the biasing force of an elastic material, and has two surfaces: a corner blade a (2) that can cut the corner portion (33) of the zipper bag (32) into a round shape, and an opening blade a (3) that can cut to create a step in the opening (34).

3. 3. A two-way corner punch as claimed in claim 1 or 2, wherein the guide (14) is formed with two surfaces: a corner guide (16) that is set to align with the corner when the corner portion (33) of the zipper bag (32) is inserted, and an opening guide (15) that is set to align with the edge when the opening (34) is inserted.

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