JP7144587B1 - safety cutter - Google Patents

Abstract

[Problem] Conventionally, a widened portion at the tip of a guide portion that wraps around the outer periphery of a cutting blade is protruding from the tip, and the cutting blade is broken at the base of the widened portion with a nut. I try not to touch the cutting edge, but thin and soft wavy plastic bags and paper packs that change the cutting direction from the middle are easy to get caught. In addition, when breaking the cutting blade, there is a risk that the broken blade will fly away, or that the blade may be used with the blade inadvertently protruded. The challenge is to be able to cut these things smoothly and to increase the safety when breaking and replacing the blade. SOLUTION: The guide part is extended to the lower end of the erected part, the cutting blade is inserted from the cutting blade insertion opening at the lower end, and a ceiling part having a surface that prevents the cutting blade from protruding is provided at the upper end of the guide part. A horizontal opening is provided on the opposite side of the cutting edge, a groove for breaking is inserted through the opening, and the cutting edge of the cutting blade is pinched and twisted to break and take out. [Selection drawing] Fig. 1

Description

INDUSTRIAL APPLICABILITY The present invention can be placed on a table or desk to quickly and safely cut stick-shaped bags of medicines, nutritional supplements, caffe latte, confectionery, etc., or can be attached to a refrigerator or the like, or held in the hand, and the ingredients can be cut. The present invention relates to a safety cutter for quickly and safely cutting pack bags containing beverages, paper cartons containing beverages, and the like.

In recent years, as people become more and more health-conscious, stick-shaped nutritional supplements and nutritional supplements can be taken every day, and stick-shaped sachets such as caffe latte and matcha latte are becoming popular because they can be easily and deliciously drunk. . Under such circumstances, scissors were used to cut laterally, as these bags were long and thin and the contents easily spilled. In addition, the foods that have been cooked and placed in a pack bag with a food saver or the like can be eaten deliciously just by heating, and cooking time can be saved, so they are used in nursing homes, hospitals, etc. In some cases, scissors or cutters were used.

In recent years, hospitals, nursing homes, offices, etc. have been affected by the new coronavirus infection, and there is a possibility of infection by using tools such as scissors, so it is also required to disinfect them with alcohol one by one. As a countermeasure, safety cutters that are placed on a table or desk or attached to a refrigerator have been proposed with various structures, such as a type that cuts with a roller and cutting blade, and a type that does not replace the cutting blade. , There is not much difference in cutting ability, but when considering safety, operability, durability, cost, etc., practicality was small.

Therefore, as an item that emphasizes practicality, a cutting blade with a bent groove is fixed with screws and nuts to a guide part that has multiple mounting holes on the standing part and a widened tip at the tip. There is also an excellent product that cuts various plastic bags with , and when the cutting blade can no longer cut, the screw is loosened and the blade of the cutting blade is advanced one pitch to break the cutting edge, but there are soft and thin plastic bags and multiple sides. In the case of paper packs and the like, there was also a problem that these cut objects were caught in the widened portion at the tip of the guide portion and could not be cut well. In addition, when breaking the cutting edge with a nut, the broken cutting edge scatters around, so there are cases where protective glasses are used, and there are also concerns about injuries caused by forgetting to put out the cutting edge and using it as it is without breaking it. .

Japanese Utility Model Application No. 58-146603 Japanese Patent Laid-Open No. 05-000761 Actual registration No. 3077514 Japanese Patent Application Laid-Open No. 2020-44605 Patent No. 6945046

Conventionally, the widened portion at the tip of the guide portion that wraps around the outer periphery of the cutting blade is used to pull out the cutting blade and break the cutting blade at the base with a nut so that the finger does not touch the cutting edge after breaking. However, it was easy to get caught when cutting thin, soft, wavy plastic bags and paper packs whose cutting direction changes midway. In addition, when breaking the cutting blade with the nut, there is a risk that the broken blade will fly away, or that the blade may be used with the blade inadvertently protruded. The challenge is to make it possible to cut these things smoothly, and to increase the safety when breaking and replacing the blade without changing the ease of handling and the number of parts.

The present invention provides a base portion having a flat surface that can be placed on a table, desk, or the like, or attached to the side surface of a refrigerator, and an inner side of an erected portion that has a double surface perpendicular to the flat surface. In addition, a cylindrical and slightly inclined guide part with a cutting blade insertion opening that allows the cutting blade to slide smoothly in the longitudinal direction and can be inserted from the bottom of the base is provided on one side of this guide part. , Multiple mounting holes are provided according to the pitch of the grooves of the cutting blade, guide holes are provided on the other side, and the cutting blade with the cutting edge facing upward is attached with a thumb screw and a nut with a groove for breaking. . The standing part has a slit that crosses the guide part from top to bottom and is large enough to prevent a finger from entering. It is cut through a pack or the like. Further, the tip of the guide portion is formed with a ceiling portion having a surface covering the upper side so that the cutting blade does not protrude, and a ceiling lateral opening is provided on the opposite side of the cutting edge. If you want to break the cutting edge that has become irreversible, loosen the thumbscrew, remove the nut, insert the break groove into the opening on the side of the ceiling, pinch the cutting edge between the break grooves, and twist to easily break the cutting edge. . The broken cutting blade can be taken out as it is by sandwiching it between the breaking grooves. After that, remove the thumb screw, advance the cutting blade by one pitch, and attach it to the mounting hole with a nut, so that it can be used as a cutter. In other words, the most important feature is that the cutting edge is always hidden from the surface by providing a ceiling.

This makes it possible to smoothly cut soft and thin plastic bags and paper packs with multiple sides. became. In addition, when breaking the cutting blade, the broken cutting blade can be taken out together with the breaking groove, and the broken cutting blade does not scatter, so there is no need to wear protective goggles and the cutting blade can be newly inserted into the main body. Even in such a case, it was dangerous to insert by grasping the edge of the blade in the past, but in the present invention, by grasping the base of the blade and inserting it, safety is further improved.

BRIEF DESCRIPTION OF THE DRAWINGS It is a front view which shows Example 1 of this invention. It is a right side view showing Example 1 of the present invention. It is a rear view showing Example 1 of the present invention. It is a top view showing Example 1 of the present invention. It is a bottom view showing Example 1 of the present invention. FIG. 2 is an enlarged AA sectional view of the guide portion of Example 1 of the present invention; FIG. 3 is a BB cross-sectional view enlarging the guide portion of Example 1 of the present invention; This figure is a front view of a typical small cutting blade used in the present invention. FIG. 10 is an enlarged view showing the inside by cutting off the lower part of the ceiling part at the tip of the guide part of Example 1 of the present invention, showing how the cutting blade is cut off with a nut. It is a figure which shows the use condition of Example 1 of this invention. It is a figure which shows the use condition of Example 1 of this invention. FIG. 2 is an exploded view of a frame including a base portion and standing portions according to Example 1 of the present invention; It is a rear view which shows Example 2 of this invention. It is a left side view showing Example 2 of the present invention. It is an enlarged view showing the vicinity of the ceiling of Example 2 of the present invention from arrow D, showing how the cutting edge of the cutting blade is broken by inserting the breaking groove through the ceiling slit. It is a front view of Example 3 of this invention. It is a left view of Example 3 of this invention. It is a right view of Example 3 of this invention. It is a bottom view of Example 3 of this invention. It is a CC cross-sectional view of Example 3 of the present invention. It is a figure which shows the use condition of Example 3 of this invention. It is a figure which shows the use condition of Example 3 of this invention. FIG. 11 is an exploded view of a frame including a base portion and standing portions according to Example 3 of the present invention;

Compact and easy to handle Safety The cutter has no weaknesses when cutting, and there are no concerns about handling, so it is extremely safe, so anyone can easily use it, and it is widely used in various fields. made available to humans.

The present invention, as shown in FIGS. 1, 2, and 6, has a base portion 1 having a flat surface that can be placed on a table, desk, or the like, and a standing portion 2 that overlaps perpendicularly to this surface. Between them, the cutting blade 12 is slid in the longitudinal direction, and a tubular guide portion 5 slightly inclined to one side from the vertical direction is provided. The guide portion 5 reaches the lower end of the standing portion 2 and is provided with a cutting blade insertion opening 9 through which the cutting blade 12 can be inserted and removed. A slit portion 7 is provided with a gap that is large enough to prevent the entry of dust, and various plastic bags are passed through the slit portion 7 and cut.

As shown in FIG. 8, one surface of the guide portion 5 is provided with a plurality of mounting holes 3 as shown in FIG. A guide hole 4 is provided as shown in FIG. there is

At the tip of the guide portion 5 of the standing portion 2, as shown in FIG. 6, a ceiling portion 6 having a surface that prevents the cutting blade 12 from protruding is provided, and the root of the ceiling portion 6 has a gap just enough for the cutting blade 12 to pass through. , and the cutting blade folding groove 14 is arranged to match this base.

Further, on the opposite side of the cutting edge immediately below the ceiling portion 6, there is provided a ceiling lateral opening 8 into which a breaking groove 16 for breaking the cutting blade 12 is inserted.

The nut 15 has a threaded hole as shown in FIG. 9, and the breaking groove 16 is made of a steel plate having a substantially U-shaped cross section, and is provided with a gap large enough for a cutting blade to enter.

A non-slip mat 19 for cushioning is provided on the bottom surface side of the base portion 1 in order to prevent impact and impact noise when the main body is placed on a table or desk.

When cutting the bag 20 containing the nutritional supplement, as shown in FIGS. When the cutting blade 12 cannot cut, loosen the thumbscrew 17, remove the nut 15, and as shown in FIG. The tip of the cutting blade 12 can be easily broken by pinching the tip of the cutting blade 12 and twisting it in the direction of the arrow. is guided by the tip of the thumbscrew 17, the mounting hole 3 is shifted by one pitch, and the thumbscrew 17 is inserted into the nut 15, and the cutter can be used as before.

Also, the base portion 1 and the standing portion 2 of this safety cutter are integrated, a thin steel plate is formed into a developed shape of the base as shown in FIG. If it is reinforced with 11 or the like, it can be made into one part, and the number of parts can be further reduced.

In the present invention, as shown in FIGS. 13 and 14, the ceiling portion 6 is provided with a ceiling slit 23 into which the breaking groove 16 of the nut 15 is inserted. As shown in FIG. 15, the cutting blade 12 is broken by inserting a breaking groove 16 through the ceiling slit 23, pinching the cutting edge of the cutting blade 12, and twisting in the direction of the arrow to break the cutting edge. Other than that, the structure is completely the same as that of the first embodiment.

As shown in FIGS. 16, 17 and 18, the structure of the present invention from the base portion 1 to the standing portion 2 is exactly the same as that of the first embodiment, but as shown in the CC cross section of FIG. A magnet 18 as a fixing member is attached to the back side of the base portion 1 by press-fitting, adhesion, or the like, and a non-slip mat 19 is attached to these.

As a result, the safety cutter can be attached to a refrigerator or the like by magnetic force, and the non-slip mat 19 prevents it from slipping easily. A pack bag 21 containing food, a pack bag containing dashi soup, etc. can be cut smoothly so as not to spill the contents. In addition, the cutting edge 12 that is no longer sharp can be replaced smoothly as in the first embodiment. , a safety cutter with a minimum number of parts. Also, instead of the magnet 18 and the non-slip mat 19 on the base portion 1, it is possible to attach an adhesive mat, a suction cup, a screw, a caulking, an adhesive, etc., and attach it to a refrigerator or the like.

There are no weak points when cutting, safety in handling is improved, and since it is a simple and easy-to-handle safety cutter, it is the type of Example 1 and Example 2 that can be used by placing it on various things, such as medicines and nutritional supplements. It can quickly cut a stick-shaped bag containing food, vinyl string, fishing line, etc., and the type of Example 3 attached to a refrigerator can cut the contents of a pack bag containing foodstuffs without spilling, and can be cut with scissors, cutters, etc. Since there is no reuse of tools, it can also prevent the spread of the new coronavirus, and can be used in a variety of ways, such as homes, hospitals, nursing homes, restaurants, and mobile stores.

1 Base part 2 Standing part 3 Mounting hole 4 Guide hole 5 Guide part 6 Ceiling part 7 Slit part 8 Ceiling side opening 9 Cutting blade insertion opening 10 Connecting part 11 Spot welding 12 Cutting blade 13 Holding hole 14 Cutting blade breakage Groove 15 Nut 16 Breaking groove 17 Knob screw 18 Magnet 19 Non-slip mat 20 Nutrient supplement 21 Pack bag containing food 22 Refrigerator side 23 Ceiling slit

Claims (1)

A base portion having a flat portion, an erected portion formed by stacking two plate members erected from the base portion, and a guide portion formed between the two plate members, the guide portion having a cutting blade. Further, a slit portion is formed in the standing portion with a length of a predetermined distance downward from the upper end, and the blade surface of the cutting blade is arranged in the slit portion in an inclined state, A plurality of mounting holes are provided on one surface of the guide portion of the standing portion in accordance with the intervals between the bent grooves formed on the cutting blade, and an elongated guide hole is provided on the other surface of the guide portion. a holding hole formed in the cutting blade is attached to the attachment hole and the guide hole with a thumb screw and a nut, and the base portion and the standing portion are integrally formed. The guide portion extends to the lower end of the standing portion, and is formed with a cutting blade insertion opening into which the cutting blade can be inserted from below. A ceiling portion having a surface that does not protrude from the tip is formed, and the ceiling portion has a cylindrical space that serves as a space for breaking the cutting edge of the cutting blade, and the broken cutting edge of the cutting blade is taken out. A safety cutter, characterized in that it is formed with a ceiling lateral opening for the.

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