Cutter for roll paper

Abstract

This invention provides a roll paper cutter that can be easily used with one hand while utilizing existing paper holders, and also contributes to preventing the spread of infectious diseases by preventing accidental contact with the roll of paper during cutting. [Solution] A roll paper cutter 1 is used to cut roll paper by being attached to the lower or side wall surface of a paper holder for roll paper, comprising a cutter body 10 having a saw-tooth blade for cutting roll paper, and a mounting fixture 20 for attaching the cutter body to the wall surface, wherein the cutter body has a main body portion 11 extending in the axial direction of the roll paper and a connecting portion 12 extending in the radial direction of the roll paper and connecting the main body portion and the mounting fixture, the main body portion has a fixed end portion 111 connected to the connecting portion and a tip portion 112 which is a free end, and the blade portion of the cutter body is provided extending over the main body portion and at least a part of the connecting portion.

Description

Technical Field

[0001] The present disclosure relates to a roll paper cutter capable of cutting roll paper such as toilet paper.

Background Art

[0002] In general, roll paper such as toilet paper is held in a paper holder. When using the roll paper, the leading end of the roll paper is pulled out from the paper holder by a required length, and the leading end of the roll paper is cut for use while the roll paper is held down.

[0003] In the conventional use of roll paper, when pulling out the roll paper, there is a problem that the leading end is in close contact with the roll paper, making the leading end difficult to grasp. In addition, when holding down and cutting the roll paper, there is a problem that this operation is difficult for people with physical disabilities, the elderly, and small children. Furthermore, in recent years, prevention of infection against infectious diseases has been frequently called for, but toilet paper in public places, which is an example of roll paper, is touched by unspecified large numbers of people with hands that may have viruses or bacteria attached, which poses a problem of contributing to the spread of infection.

[0004] For example, regarding the spread of infectious diseases, there was actually a news report that in a certain elementary school, more than half of all students contracted norovirus infection, leading to the school being closed. At that elementary school, teachers instructed children to fold the toilet paper into a triangle for the next user as an etiquette after using the toilet, and the children obediently followed this practice. As a result, an infected person touched the toilet paper with contaminated hands, and the next person touched the contaminated toilet paper, which was repeated, leading to the spread of infection. As described above, locations that may be touched by an unspecified large number of people, such as toilet paper in public restrooms, are easily overlooked but are important issues for suppressing the spread of infection.

[0005] Therefore, in order to solve the above problems, a paper holder has been developed in which a paper cutter (a horizontal bar with a blade) is attached below the paper holder so as to allow the roll of paper to be cut without touching the roll of paper (see, for example, Patent Document 1). Specifically, the paper holder of Patent Document 1 comprises a paper holder body for attaching roll paper, an arm extending downward from the paper holder body, and a horizontal bar with a blade extending horizontally below the paper holder body from the lower end of the arm. The horizontal bar with a blade is equipped with a blade capable of cutting roll paper and is attached to the paper holder so as to be able to cut roll paper whose tip hangs downward. [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] Japanese Patent Publication No. 2009-291567 [Overview of the project] [Problems that the invention aims to solve]

[0007] However, the paper holder described in Patent Document 1 has an integrated structure that includes the paper holder, arm, and blade-equipped horizontal bar. Therefore, adopting the paper holder described in Patent Document 1 would require replacing existing paper holders, which presented a problem in terms of widespread adoption.

[0008] This disclosure is made to solve the above-mentioned problems and aims to provide a roll paper cutter that can be easily cut with one hand while utilizing an existing paper holder, and that also contributes to preventing the spread of infectious diseases by preventing accidental contact with the roll paper during cutting. [Means for solving the problem]

[0009] As a result of diligent research, the inventors have found that the above objective can be achieved by attaching a roll-type paper cutter having a specific shape to the lower or side wall of the paper holder for the roll-type paper, and have completed this disclosure.

[0010] In other words, this disclosure relates to a cutter for rolled paper, etc., having the configuration shown below. Section 1. A roll paper cutter, which is attached to the lower or side wall of a paper holder for roll paper and used to cut roll paper, A cutter body having a saw-tooth-shaped blade for cutting the roll of paper, The cutter body is equipped with a mounting device for attaching it to a wall surface, The cutter body has one or two main body portions extending in the axial direction of the roll of paper, and a connecting portion extending in the radial direction of the roll of paper and connecting the main body portions and the mounting fixture. The main body portion has a fixed end portion that is connected to the connecting portion and a tip portion that is a free end portion. A cutter for roll paper, characterized in that the blade portion of the cutter body is provided extending over the main body portion and at least a part of the connecting portion.

[0011] Section 2. The roll-type paper cutter according to item 1, characterized in that when the main body is attached to a wall, the distance from the fixed end to the tip increases from the wall.

[0012] Section 3. The roll paper cutter according to item 1 or 2, characterized in that the tip of the main body is curved toward the wall surface.

[0013] Section 4. The main body and the connecting portion have a predetermined width. The blade portion according to any one of claims 1 to 3, wherein the blade portion is provided on the wall surface side of the main body portion and the connecting portion, the cutter for rolled paper being characterized in that.

[0014] Claim 5. The fixture includes a fixture main body attached to the connecting portion, and a cover body covering the fixture main body, The fixture main body and the cover body are provided with an engagement protrusion on one side, and an engagement recess capable of engaging with the engagement protrusion on the other side, The engagement protrusion and the engagement recess are engaged with each other, and are provided at positions where the main body portion is inclined with respect to a horizontal plane parallel to the axis of the rolled paper when the fixture is attached to a wall surface with the cover body in an appropriate orientation, the cutter for rolled paper according to any one of claims 1 to 4 being characterized in that.

[0015] Claim 6. The cutter for rolled paper according to any one of claims 1 to 5, wherein the cover body is configured to be detachable from the fixture main body.

[0016] Claim 7. The cutter for rolled paper according to any one of claims 1 to 6, wherein the blade portion is configured to be detachable from the cutter main body. Effects of the Invention

[0017] According to the present disclosure, it is possible to provide a cutter for rolled paper that can be easily cut and used with one hand while utilizing an existing paper holder, and that contributes to preventing the spread of infectious diseases by avoiding inadvertently touching the rolled paper during cutting. Brief Description of the Drawings

[0018] [Figure 1] It is a perspective view showing a use state of the cutter for rolled paper (Example 1) according to one embodiment of the present disclosure. [Figure 2]This is a front view of the rolled paper cutter (Example 1) in Figure 1. [Figure 3] This is a rear view of the rolled paper cutter (Example 1) in Figure 1. [Figure 4] This is a left side view of the rolled paper cutter (Example 1) in Figure 1. [Figure 5] This is a right side view of the rolled paper cutter (Example 1) in Figure 1. [Figure 6] This is a plan view of the rolled paper cutter (Example 1) in Figure 1. [Figure 7] This is a bottom view of the rolled paper cutter (Example 1) in Figure 1. [Figure 8] This is a perspective view of a rolled paper cutter (Example 7) according to another embodiment of the present disclosure. [Figure 9] 9a is a bottom view of the rolled paper cutter (Comparative Example 1). 9b is a front view of the rolled paper cutter (Comparative Example 1). [Figure 10] 10a is a front view of the rolled paper cutter (Example 2). 10b is a bottom view of the rolled paper cutter (Example 2). 10c is a front view of the rolled paper cutter (Alternative aspect of Example 2). 10b is a bottom view of the rolled paper cutter (Alternative aspect of Example 2). [Figure 11] 11a is a front view of the rolled paper cutter (Example 3). 11b is a bottom view of the rolled paper cutter (Example 3). [Figure 12] 12a is a front view of the rolled paper cutter (Example 4). 12b is a bottom view of the rolled paper cutter (Example 4). [Figure 13] 13a is a front view of the rolled paper cutter (Example 5). 13b is a bottom view of the rolled paper cutter (Example 5). [Mode for Carrying Out the Invention]

[0019] Embodiments of this disclosure will be described below with reference to the accompanying drawings. The roll paper cutter of this disclosure is a cutter used for cutting roll paper.

[0020] The roll paper cutter 1 according to this embodiment will be described with reference to Figures 1 to 7. Figure 1 is a perspective view showing the roll paper cutter 1 according to this embodiment in use. Figure 2 is a front view of the roll paper cutter according to this embodiment. Figure 3 is a rear view of the roll paper cutter according to this embodiment. Figure 4 is a left side view of the roll paper cutter according to this embodiment. Figure 5 is a right side view of the roll paper cutter according to this embodiment. Figure 6 is a top view of the roll paper cutter according to this embodiment. Figure 7 is a bottom view of the roll paper cutter according to this embodiment.

[0021] In this embodiment, the roll of paper P is toilet paper, and the roll of paper P is attached to a paper holder H installed on a wall W of a house or the like, with its axis oriented horizontally. The roll of paper cutter 1 is attached to the wall W of the house or the like, below the paper holder H of the roll of paper P. Note that the roll of paper P is not limited to toilet paper, but may be rolled paper such as kitchen paper. Furthermore, the roll of paper P is not limited to being attached with its axis oriented horizontally, but can be attached with its axis oriented in any direction, such as vertically. If the roll of paper P is attached with its axis oriented vertically, the roll of paper cutter 1 is attached to the wall W to the side of the paper holder H of the roll of paper P. In addition, the paper holder H and the roll of paper cutter 1 may be attached not only to the wall W of a house or the like, but also to the wall W of household items such as a refrigerator. In the following description, as shown in Figure 1, the roll paper cutter 1 is used mounted on a wall W, with the vertical direction defined as the up-and-down direction, the direction along the wall W defined as the left-and-right direction, and the direction perpendicular to the up-and-down and left-and-right directions, and also perpendicular to the wall W, defined as the front-and-back direction. The roll paper cutter may also be directly mounted on the paper holder H. Alternatively, the roll paper cutter may be mounted on a handrail or the like near the paper holder H.

[0022] The roll paper cutter 1 comprises a cutter body 10 and a mounting bracket 20 for attaching the cutter body 10 to a wall surface W.

[0023] The cutter body 10 is used to cut the roll of paper P. The cutter body 10 has a main body portion 11 that extends in the axial direction (left-right direction) of the roll of paper P, and a connecting portion 12 that extends in the radial direction (front-back direction) of the roll of paper P and connects the main body portion 11 and the mounting fixture 20.

[0024] The main body portion 11 and the connecting portion 12 are formed from a rod-shaped material having a predetermined width. Here, width refers to the length in the front-to-back direction for the main body portion 11 and the length in the left-to-right direction for the connecting portion 12. The connecting portion 12 has a mounting fixture 20 at one end (rear end) and the main body portion 11 at the other end (front end). The main body portion 11 has a fixed end portion 111 and a free end portion 112, and the fixed end portion 111 is connected to the connecting portion 12. In this case, the cutter body 10 has a substantially L-shape in plan view (viewed in Figure 6). The plan view shape of the cutter body 10 includes not only a shape in which the main body portion 11 and the connecting portion 12 are connected at an angular corner, but also a shape in which the main body portion 11 and the connecting portion 12 are connected at a curved corner, and a shape in which the main body portion 11 and the connecting portion 12 are connected in a substantially bow shape. Even if the shape of the cutter body 10 in plan view is a curved corner or a roughly bowed shape, the portion that is roughly perpendicular to the wall surface W and extends in the radial direction of the roll of paper P is considered to be the connecting portion 12, and the portion beyond the connecting portion 12 is considered to be the main body portion 11.

[0025] The main body 11 has a length (left-right length) that is longer than the axial length of the roll of paper P. The connecting part 12 has a length (front-back length) that is longer than the diameter of a new roll of paper P. As a result, when the cutter body 10 is attached to the wall surface W below the paper holder H, the new roll of paper P hanging from the paper holder H is positioned inside the approximately L-shape of the main body 11.

[0026] As shown in Figure 6, when the main body 11 is attached to the wall W, it is attached to the connecting part 12 at an angle forward from the connecting part 12 in a plan view, such that the distance from the wall W increases from the fixed end 111 to the tip 112. Furthermore, the tip 112 of the main body 11 is curved toward the wall W side (rear side). This makes it easy to insert the roll of paper P from the tip 112 of the main body 11 between the cutter body 10 and the wall W, and also makes it difficult for the roll of paper P to slip out from between the cutter body 10 and the wall W.

[0027] The cutter body 10 has a sawtooth-shaped blade portion 13. The blade portion 13 is provided on the main body portion 11 and at least a part of the connecting portion 12. The blade portion 13 is provided on the lower surface of the main body portion 11 and the connecting portion 12, projecting downward or projecting downward and inward in a substantially L-shape. The blade portion 13 may be provided integrally with the cutter body 10, or it may be provided detachably with respect to the cutter body 10.

[0028] Each blade constituting the sawtooth-shaped blade portion 13 has any known shape, such as a straight line, a V-shape, or an arch. The blade portion 13 can also have any known shape, such as a sawtooth shape with blades of the same size lined up, a sawtooth shape with large and small blades arranged alternately, or a sawtooth shape where the size of the blades gradually changes toward one side. In other words, the blade portion 13 only needs to be shaped so that it can always cut the roll of paper P, whose diameter changes with use. However, since the blade portion 13 may be touched by human hands, it is preferable that the blade can cut the roll of paper P but is not too sharp and can be used safely. There is no particular limit to the number of protrusions on the blade portion 13, but for example, it is 30 to 80, preferably 50 to 75. A narrow pitch between the protrusions on the blade portion and a large number of protrusions are preferable in that the cut surface of the paper after cutting the roll of paper is clean.

[0029] It is preferable that the inner surfaces of the main body 11 and the connecting part 12 are flat, forming a roughly L shape. Furthermore, it is preferable that the blade 13 is provided projecting downward from the wall surface W side of the main body 11 and the connecting part 12, that is, from the inner side of the roughly L shape. This makes it easier for the roll of paper P to come into contact with the blade 13, allowing the roll of paper P to be cut easily.

[0030] The mounting fixture 20 is used to attach the cutter body 10 to the wall surface W. In this embodiment, the mounting fixture 20 has a mounting fixture body 21 that is attached to the connecting portion 12 and a cover body 22 that covers the mounting fixture body 21.

[0031] The mounting fixture body 21 has a plate shape and is provided with mounting means 211 for attaching the roll paper cutter 1 to the wall surface W. As shown in Figure 3, in this embodiment, mounting holes 211 are provided as mounting means 211 for screwing or nailing the roll paper cutter 1 to the wall surface W. The mounting fixture body 21 may be integrated with the connecting part 12 or it may be a separate component. The mounting means 211 only needs to be able to attach the roll paper cutter 1 to the wall surface W without it falling off, and in addition to screws and nails, adhesives, suction cups, magnets, etc. can be used. In this case, no mounting holes are provided, and if suction cups or magnets are used, the suction cups or magnets are attached to the back surface (rear surface) of the mounting fixture body 21.

[0032] The cover body 22 covers the mounting fixture body 21 and improves the appearance of the mounting portion of the roll-type paper cutter 1 attached to the wall surface W. In this embodiment, the cover body 22 has a clover shape. The cover body 22 has a through hole (mounting hole) 221 in the center for inserting the cutter body 10, and a housing portion 222 capable of accommodating the mounting fixture body 21 is provided on the back (rear) side. The through hole 221 is sized and shaped to allow the cutter body 10 to be inserted and to cover the area near the connection portion of the connecting portion 12 with the mounting fixture body 21. The housing portion 222 is sized and shaped to accommodate the mounting fixture body 21 without sliding or rotating. Note that the cover body 22 is not limited to a clover shape, but can be any shape with excellent design, such as a cat or a flower.

[0033] As shown in Figure 3, the mounting bracket body 21 and the cover body 22 are provided with an engaging projection 23 on one side and an engaging recess 24 on the other side that can engage with the engaging projection 23. In this embodiment, the mounting bracket body 21 is provided with the engaging projection 23 and the cover body 22 is provided with the engaging recess 24. The engaging projection 23 and the engaging recess 24 are positioned so that when the mounting bracket 20 is attached to the wall surface W with the cover body 22 in the correct orientation, the main body 11 is inclined with respect to a horizontal plane parallel to the axis of the roll of paper P. In other words, the mounting bracket body and cover body are designed to be in the correct orientation, thereby allowing the main body to be inclined at a predetermined angle with respect to a horizontal plane parallel to the axis of the roll of paper.

[0034] The cutter body 10 and the mounting bracket 20 are formed from, for example, resin, metal, ceramics, or wood. When a roll of paper P is applied to the roll paper cutter 1 and cut, a force is generated on the cutter body 10 in the direction of pushing up the blade portion 13, and a force is generated on the mounting bracket 20 in the direction of moving away from the wall surface W. Therefore, the cutter body 10 is formed to have strength that prevents bending and plastic deformation even when a force is applied in the direction of pushing up the blade portion 13. That is, the main body portion 11 and the connecting portion 12 have a width that prevents bending and plastic deformation even when a force is applied in the direction of pushing up the blade portion 13. When the main body portion 11 and the connecting portion 12 are formed from resin, ribs are provided inside to ensure that they have strength that prevents bending and plastic deformation even when a force is applied in the direction of pushing up the blade portion 13. The rib structure is preferable in terms of preventing warping, preventing bending, increasing strength and rigidity, and improving fluidity (filling efficiency). Furthermore, the mounting fixture 20 has mounting means that allows the roll paper cutter 1 to be attached with sufficient strength to prevent it from separating from the wall surface W, even when a force is applied in a direction that would cause it to separate from the wall surface W. A rib cover can be provided to cover the rib structure. The rib cover can be removed for cleaning the inside of the ribs, depending on the usage scenario and hygiene considerations. The roll paper cutter of this disclosure can be manufactured using conventional molding methods such as injection molding and extrusion molding, or by a 3D printer.

[0035] As shown in Figure 1, the roll paper cutter 1 is used by being attached to the lower wall W of the paper holder H. Specifically, the mounting body 21 is attached to the wall W. At this time, the mounting body 21 is attached to the wall W so that the engaging projection 23 is in a predetermined position. Since the mounting body 21 is attached to the connecting part 12 and the mounting body 21 and the cutter body 10 are one unit, the cutter body 10 is also attached to the wall W. In this state, the through hole 221 of the cover body 22 is inserted through the cutter body 10, and the mounting body 21 is housed in the housing part 222 of the cover body 22, thereby attaching the cover body 22 to the mounting body 21. At this time, the engaging recess 24 engages with the engaging projection 23, so that the cover body 22 faces the appropriate position. In other words, the predetermined position of the engaging projection 23 is the position in which the cover body 22 faces the appropriate position when the engaging recess 24 and the engaging projection 23 are engaged. When mounted in this manner, the main body 11 is mounted at a slight upward inclination with respect to the horizontal plane. The length of the connecting portion is not particularly limited, but for example, it is about 1 cm to 15 cm, preferably about 3 cm to 10 cm, and more preferably about 5 cm to 8 cm. The cross-sectional shape of the connecting portion is not particularly limited; for example, it could be circular, approximately circular, square, approximately square, etc. The thickness (diameter) of the connecting section is not particularly limited, but is, for example, about 1 cm to 4 cm, preferably about 1.5 cm to 3 cm. It is preferable that the connecting section on the wall-mounting side be thicker than the connecting section closer to the cutter body. Part of the connecting section can be flat. It is preferable that the flat section of the connecting section be on the tip side of the cutter body. Having a flat section makes it easier for the cutter (blade) and the roll of paper to come into contact, which has the effect of improving cutting performance.

[0036] The roll paper cutter can be mounted to a wall by inserting screws into the mounting holes and securing them with screws. This screw fastening secures the roll paper cutter to the wall. Alternatively, the roll paper cutter can also be mounted to a wall using double-sided tape, adhesive, etc.

[0037] The length of the cutter body having a sawtooth-shaped blade is not particularly limited, but is, for example, about 10 cm to 20 cm, and preferably about 1 cm to 15 cm. The cross-sectional shape of the cutter body is not particularly limited; for example, it can be circular, roughly circular, square, roughly square, etc. The thickness (diameter) of the cutter body is not particularly limited, but is, for example, about 0.5 cm to 4 cm, preferably about 1 to 3 cm. It is preferable that the thickness of the cutter body tapers from the fixed part to the tip. A part of the cutter body can be flat. It is preferable that the flat part of the cutter body is on the wall side.

[0038] The mounting position of the roll paper cutter 1 is preferably about 10cm to 20cm below the paper holder. This ensures that the leading edge Pe of the roll paper P is always exposed by 10cm to 20cm, making it easier for the user of the roll paper P to grasp the leading edge Pe.

[0039] Furthermore, the roll paper cutter of the present invention has the effect of making it easy for the user to cut roll paper regardless of whether they use their right hand, left hand, dominant hand, or non-dominant hand. The roll paper cutter of the present invention can be used with one hand or both hands. [Examples]

[0040] The present disclosure will be described in further detail below with reference to examples and comparative examples. This disclosure is not limited in any way to the following embodiments.

[0041] Example 1 Example 1 (Prototype 7) used the toilet paper cutter prototype 7 shown in Figures 2-7. Specifically, (1) the tip 112 of the main body 11 of the toilet paper cutter was slightly curved inward (towards the wall). (2) The mounting part 20 had a mounting part body 21 and a cover body 22, and the mounting part body 21 was provided with two engaging protrusions (projections) 23. The diameter of the fixed end 111 was approximately 15 mm, the diameter of the tip 112 was approximately 11 mm, the length of the connecting part 12 was approximately 65 mm, and the length of the main body 11 was approximately 140 mm. The width of the cover body 22 was approximately 60 mm, and its thickness was approximately 8 mm. The diameter of the mounting fixture body 21 was approximately 40 mm, and its thickness was approximately 3 mm. The blade part 13 had approximately 69 protrusions. The main body 11 of the toilet paper cutter was tilted upwards at approximately 16 degrees relative to the horizontal. In addition, the main body 11 of the toilet paper cutter was tilted at approximately 13 degrees relative to the wall, with the distance from the fixed end 111 to the tip 112 increasing from the wall surface.

[0042] Comparative Example 1 Comparative Example 1 (Prototype 1) used the toilet paper cutter prototype 1 shown in Figure 9. Specifically, (1) the cutter body 10 was parallel to the wall surface. (2) The blade portion 13 was provided only on the cutter body 10. In Comparative Example 1 (Prototype 1), the mounting fixture 20 consisted only of the mounting body 21 and did not have a cover body 22. The thickness (diameter) of the fixed end 111 was approximately 15 mm, the thickness (diameter) of the tip 112 was approximately 11 mm, the length of the connecting part 12 was approximately 60 mm, and the length of the main body 11 was approximately 137 mm. The thickness (diameter) of the mounting fixture body 21 was approximately 37 mm. The blade part 13 had approximately 28 protrusions.

[0043] Example 2 Example 2 (Prototype 2) used the toilet paper cutter prototype 2 shown in Figure 10. Specifically, (1) the cutter body 10 was made rounder and thicker to make it less prone to breaking. (2) The position of the blade portion 13 of the cutter body 10 was considered to be better, such as being in the lower center or closer to the toilet paper. (3) An anti-slip material was made on the tip portion 112 of the cutter body 10 to prevent the toilet paper from slipping. (4) The blade portion 13 was extended to near the mounting portion 20 to improve cutting performance. (5) The location of the blade portion 13 (for example, the lower side, upper side, etc. of the cutter body 10) was changed and tested. Note that in Example 2 (Prototype 2), the mounting fixture 20 consists only of the mounting portion body 21 and does not have a cover body 22. The diameter of the fixed end 111 was approximately 23 mm, the diameter of the tip 112 was approximately 18 mm, the length of the connecting part 12 was approximately 40 mm, and the length of the main body 11 was approximately 150 mm. The dimensions of the mounting fixture body 21 were approximately 70 mm (top to bottom) x approximately 75 mm (left to right), and its thickness was approximately 5 mm. The protrusions on the blade part 13 were approximately 35.

[0044] Example 3 Example 3 (Prototype 3) used the toilet paper cutter prototype 3 shown in Figure 11. The toilet paper cutter had a (distance from the wall side of the fixed end to the mounting fixture (length of the connecting part)) of approximately 70 mm and a (distance from the wall to the tip (distance from the wall to the opposite tip)) of approximately 110 mm (see Figure 12(b)). Specifically, (1) a curved toilet paper cutter body 10 was created to prevent the toilet paper from slipping. (2) The design of the mounting part 20 was made into a clover pattern. Note that in Example 3 (Prototype 3), the mounting fixture 20 consists only of the mounting part body 21 and does not have a cover body 22. The thickness (diameter) of the fixed end 111 was approximately 18 mm, the thickness (diameter) of the tip 112 was approximately 15 mm, and the length of the main body 11 was approximately 160 mm (straight length from the mounting part (inside) to the tip). The blade 13 had approximately 43 protrusions.

[0045] Example 4 Example 4 (Prototype 4) used the toilet paper cutter prototype 4 shown in Figure 12 (a is approximately 50 mm, b is approximately 95 mm). Specifically, (1) to make it easier to insert toilet paper, the shape of the cutter body 10 was changed so that the tip 112 was slightly widened on the opposite side from the wall, rather than being a right-angle L-shape to the wall. (2) The clover pattern design of the mounting part 20 was given a raised and recessed appearance. Note that in Example 4 (Prototype 4), the mounting fixture 20 consists only of the mounting part body 21 and does not have a cover body 22. The thickness (diameter) of the fixed end 111 was approximately 15 mm, the thickness (diameter) of the tip 112 was approximately 12 mm, the length of the connecting part 12 was approximately 65 mm, and the length of the main body 11 was approximately 140 mm. The blade part 13 had approximately 47 protrusions.

[0046] Example 5 Example 5 (Prototype 5) used the toilet paper cutter of Prototype 4 shown in Figure 13. Specifically, (1) the entire structure, including the mounting bracket 20 and the cutter body 10, was made smaller while considering strength. (2) The cutting performance of the toilet paper was tested by tilting the cutter body 10 downwards and upwards. (3) The back surface of the cutter body 10, the wall side, was cut in a flat manner. (4) For safety reasons, the blade of the blade section 13 was adjusted to a sharpness sufficient to cut toilet paper. Note that in Example 5 (Prototype 5), the mounting bracket 20 consists only of the mounting body 21 and does not have a cover body 22. The thickness (diameter) of the fixed end 111 was approximately 17 mm, the thickness (diameter) of the tip 112 was approximately 12 mm, and the length of the connecting part 12 was approximately 50 mm. The blade portion 13 had approximately 38 protrusions (the length of the main body portion 11 was approximately 147 mm), or the blade portion 13 had approximately 44 protrusions (the length of the main body portion 11 was approximately 163 mm).

[0047] Example 6 Example 6 (prototype 6) is similar to the prototype toilet paper cutter shown in Figures 2-7, but uses a mounting body 21 without an engaging projection (protrusion) 23. Specifically, (1) the tip 112 of the main body 11 of the toilet paper cutter is slightly curved inward (towards the wall).

[0048] <Test Example 1 (Sharpness)> Six evaluators used the toilet paper cutters of Examples 1-6 and Comparative Example 1 to cut toilet paper 10 times with one hand. They cut 5 times with their right hand and 5 times with their left hand. The number of times a clean cut was achieved was counted. "Clean" refers to the condition of the cut surface of the toilet paper after cutting. "Cutting performance" can also be rephrased as "ease of cutting." 5-star rating: I managed to cut it cleanly 5:10 times. 4: I was able to cut it cleanly 9 times. 3: I was able to cut it cleanly 8 times. 2: I was able to cut 7 times. 1: I was able to cut it 6 times. The results are shown in Table 1.

[0049] <Test Example 2 (Stability)> Six evaluators assessed the stability (sense of stability) of the toilet paper cutters after installation, using the toilet paper cutters from Examples 1-6 and Comparative Example 1. 5-star rating: 5: It is securely and stably fixed. 4: It is securely fixed. 3: It may be somewhat weak depending on the type of wall surface. 2: Slightly weak. 1: Weak. The results are shown in Table 1.

[0050] <Test Example 3 (Ease of Installation)> Six evaluators assessed the ease of installation of the toilet paper cutters in Examples 1-6 and Comparative Example 1, considering the optimal mounting angle and the short time required. 5-star rating: 5: Good. 4: Fairly good. 3: Average. 2: Slightly bad. 1: Bad. The results are shown in Table 1.

[0051] <Test Example 4 (Design Quality)> Six evaluators assessed the design of the toilet paper cutters in Examples 1-6 and Comparative Example 1. 5-star rating: 5: Good. 4: Fairly good. 3: Average. 2: Slightly bad. 1: Bad. The results are shown in Table 1.

[0052] <Overall Rating> The scores from the above test examples 1-4 were totaled and an overall evaluation was performed. The results are shown in Table 1.

[0053] [Table 1] <Result> Comparative Example 1 (Prototype 1, Figure 9) had a cutter body 10 that was parallel to the wall surface, flat, thin, and thin, resulting in a lack of strength and a tendency to break easily. Furthermore, it lacked aesthetic appeal. In contrast, Example 2 (Prototype 2, Figure 10) has the following advantages: (1) The cutter body 10 is made rounder and thicker, making it less prone to breaking. (2) The blade portion 13 is positioned closer to the toilet paper, improving ease of cutting. (3) The blade portion 13 of the roll-type paper cutter is extended closer to the mounting portion 20, making it easier to cut the toilet paper. In Example 3 (Prototype 3, Figure 11), the design of the mounting part 20 was made into a clover pattern, but the design of the mounting part 20 can also be changed to the shape of a cat, a flower, etc. Example 4 (Prototype 4, Figure 12) (1) By slightly widening the cutter body 10 on the opposite side from the wall, it became easier to insert toilet paper. (2) By adding a raised and recessed design to the clover pattern of the mounting part 20, nails, screws, etc., became less noticeable. (3) By making the cutter body 10 curved, it became easier to insert toilet paper and the cutting performance was also improved. Example 5 (Prototype 5, Figure 13) has the following advantages: (1) The overall size has been reduced, improving the aesthetic appearance. (2) Raising the cutter body 10 by 12-20 degrees (approximately 16 degrees in Figure 13) makes it easier to insert and cut toilet paper. (3) Making the back surface of the cutter body 10 flat allows the toilet paper to directly contact the blade 13, making it easier to cut. In Example 6 (Prototype 6), the tip 112 of the main body 11 of the roll-type paper cutter was slightly curved inward (towards the wall), making it easier to cut toilet paper with one hand. The overall design was improved, it had a safe cutting feel, and it was a toilet paper cutter that cut cleanly without leaving any paper residue. Example 1 (Figures 2-7) shows that (1) by slightly curving the tip 112 of the main body 11 of the roll-type paper cutter inward (towards the wall), it became easier to cut toilet paper with one hand. (2) by raising the cutter body 10 by 12-20 degrees (approximately 16 degrees in Figures 2-7), it became easier to insert and cut toilet paper. (3) by providing two engaging protrusions (projections) 23 on the mounting fixture body 21, it became possible to attach the cutter body 10 at a specific angle. (4) As a result, it became possible to attach the cutter body 10 without it shifting.

[0054] As described above, the roll paper cutter 1 of this disclosure is provided with a blade portion 13 extending over at least a part of the main body portion 11 and the connecting portion 12. This allows the roll paper P to be easily cut by the blade portion 13 provided on the connecting portion 12, even if the roll paper P moves towards the connecting portion 12 when cutting the roll paper P with one hand. Furthermore, the leading end Pe of the roll paper P cut using the roll paper cutter 1 is slightly pulled out from the paper holder H because the roll paper cutter 1 is located below or to the side of the paper holder H. This makes it easier for anyone, including people with disabilities, the elderly, and infants, to grasp the leading end Pe of the roll paper P and easily pull out the roll paper P with one hand.

[0055] Furthermore, with conventional paper holders H, when a roll of paper P is cut, the blade of the paper holder H hides the leading edge Pe of the roll of paper P. When pulling out the roll of paper P, it is necessary to lift the blade of the paper holder H or rotate the roll of paper P. This means that a person infected with an infectious disease and carrying a virus or bacteria may touch the paper holder H or roll of paper P, and the infection may spread when the next person touches the paper holder H or roll of paper P contaminated with the virus or bacteria. However, when using the roll of paper cutter 1 of this disclosure, the leading edge Pe of the roll of paper P is near the roll of paper cutter 1. Therefore, there is no need to inadvertently touch the body of the roll of paper P when cutting it. Also, since the leading edge Pe of the roll of paper P is not touched by a person, there is no risk of virus or bacteria adhering to it. This contributes to preventing the spread of infectious diseases.

[0056] In addition, the roll paper cutter 1 of this disclosure is used by attaching it to the lower or side wall W of the paper holder H of an existing roll paper P. This eliminates the need to replace the entire paper holder H, which is expensive, in infection prevention measures for new types of infectious diseases. By simply attaching the roll paper cutter 1, one route of infection can be blocked easily and inexpensively, enabling infection prevention measures to be implemented without being overwhelmed by the speed of infectious disease spread.

[0057] Although embodiments of the present disclosure have been described above, the present disclosure is not limited to the embodiments described above, and various modifications are possible without departing from the spirit thereof.

[0058] For example, in the above embodiment, the cutter body 10 is configured to have one main body portion 11, but the present invention does not necessarily have to be configured in this way. For example, it can be configured as shown in Figure 8. Figure 8 is a perspective view of a roll paper cutter 1 according to another embodiment of the present invention. That is, the cutter body 10 can be configured to have two main body portions 11a and 11b attached to the connecting portion 12. In the embodiment of Figure 8, the main body portions 11a and 11b are formed from a rod-shaped material, and their respective fixed ends 111a and 111b are fixed to the tip of the connecting portion 12 (the end opposite to the mounting fixture 20). The main body portion 11 may be made from a single rod-shaped material, and the central part of the main body portion 11 may be fixed to the connecting portion 12 as a fixing part.

[0059] Furthermore, in the above embodiment, the mounting fixture 20 has a mounting fixture body 21 and a cover body 22, and the mounting fixture body 21 is provided with mounting means 211 for attaching to a wall surface W, but the present invention does not necessarily have to be configured in this way. For example, the mounting means 211 may be provided on the cover body 22. Also, the mounting fixture 20 may be configured without a cover body 22. If the mounting fixture 20 does not have a cover body 22, the mounting fixture 20 may be configured to be detachably attached to the cutter body 10. This allows only the cutter body 10 to be replaced if the cutter body 10 is damaged. [Industrial applicability]

[0060] The roll paper cutter 1 of this disclosure is easy to install, inexpensive, and does not require electricity, so it can be used in toilets in hospitals, department stores, commercial facilities where people gather, schools, train stations, etc. Furthermore, it has a large market not only in Japan but also overseas, and as a device that can prevent the spread of viruses worldwide, it has industrial potential. [Explanation of Symbols]

[0061] 1. Cutter for roll paper 10 Cutter body 11, 11a, 11b Main body 111, 111a, 111b fixed end 112, 112a, 112b tip 12 Connecting part 13 Blade part 20 Mounting hardware 21 Mounting fixture body 211 Mounting means 22 Cover body 221 Through hole 222 Storage Unit 23 Engagement protrusion 24 Engagement recess 30 volts H Paper Holder P Roll Paper W Wall a. Distance from the wall side of the fixed end to the mounting fixture (length of the connecting part) b. Distance from the wall to the tip (distance from the wall to the opposite tip)

Claims

1. A roll paper cutter, which is attached to the lower or side wall of a paper holder for roll paper and used to cut roll paper, A cutter body having a saw-tooth-shaped blade for cutting the roll of paper, The cutter body is equipped with a mounting device for attaching it to a wall surface, The cutter body has one or two main body portions extending in the axial direction of the roll of paper, and a connecting portion extending in the radial direction of the roll of paper and connecting the main body portions and the mounting fixture. The main body portion has a fixed end portion that is connected to the connecting portion and a tip portion that is a free end portion. A cutter for roll paper, characterized in that the blade portion of the cutter body is provided extending over the main body portion and at least a part of the connecting portion.

2. The roll-type paper cutter according to claim 1, characterized in that when the main body is attached to a wall, the distance from the wall increases from the fixed end to the tip.

3. The roll paper cutter according to claim 2, characterized in that the tip of the main body is curved toward the wall.

4. The main body and the connecting portion have a predetermined width. The cutter for roll-shaped paper according to claim 1, characterized in that the blade portion is provided on the wall side of the main body portion and the connecting portion.

5. The mounting fixture comprises a mounting fixture body that is attached to the connecting portion and a cover body that covers the mounting fixture body. The mounting bracket body and the cover body are provided with an engaging projection on one side and an engaging recess on the other side that can engage with the engaging projection. The cutter for roll paper according to any one of claims 1 to 4, characterized in that the engaging projection and the engaging recess are positioned such that when the mounting fixture is attached to the wall surface in a manner in which the cover body is properly oriented, the main body is inclined with respect to a horizontal plane parallel to the axis of the roll paper.

6. The roll paper cutter according to claim 1, characterized in that the cover body is configured to be detachably attached to the mounting fixture body.

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