Roll paper holders and portable toilets

Abstract

To provide a roll paper holder that enables a user to draw paper easily by one hand, and that can be compact and simplified more than conventional ones.SOLUTION: A roll paper holder 20 includes a paper support member 30 including: a support rod 31 to which roll paper 100 is inserted; and a first slide part 32A provided in one end of the support rod 31. The roll paper holder 20 includes a paper pressing member 40 including: a first column 41 that engages with the first slide part 32A vertically slidably; and a pressing rod 43 extending from the first column 41 in a horizontal direction and arranged above the support rod 31. The roll paper holder 20 is configured to sandwich the roll paper 100 with the pressing rod 43 and the support rod 31.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a roll paper holder for holding roll paper and a portable toilet equipped with the same. [Background technology]

[0002] Conventionally, roll paper holders for holding rolls of paper such as toilet paper, kitchen paper, etc. For example, Patent Document 1 describes a roll paper holder used to hold and cut toilet paper.

[0003] The roll paper holder described in Patent Document 1 is composed of a roll paper holder, a presser plate for cutting the roll paper, and a roll paper shaft support member. The roll paper holder is composed of a back plate and left and right holder plates that extend forward from the left and right ends of the back plate. The presser plate for cutting the roll paper is slidably engaged in a groove that extends vertically in the roll paper holder. The roll paper shaft support members are attached to the left and right holder plates and support the ends of the toilet paper roll core.

[0004] Incidentally, as the amount of toilet paper remaining decreases, the diameter of the roll of toilet paper becomes smaller. If the roll paper cutting plate is a rotating type, the roll paper cutting plate rotates downward as the amount of paper remaining decreases, so the position and angle of the contact point of the roll paper cutting plate with respect to the toilet paper tend to change relatively significantly. On the other hand, according to the roll paper holder described in Patent Document 1, the roll paper cutting plate is supported on the roll paper holder so that it can slide up and down, and moves straight downward as the amount of paper remaining decreases. The position and angle of the contact point of the roll paper cutting plate with respect to the toilet paper are unlikely to change. Patent Document 1 also describes how the user can easily cut off the toilet paper with one hand, regardless of the amount of paper remaining. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-223982 Summary of the Invention [Problem to be solved by the invention]

[0006] However, the roll paper holder described in Patent Document 1 is composed of a roll paper holder, a presser plate for cutting the roll paper, and a roll paper shaft support member, and requires a roll paper holder with a back plate and left and right holding plates. The roll paper holder described in Patent Document 1 makes it difficult to pull out the paper with one hand. It is also difficult to make the structure smaller or simpler.

[0007] The present invention was made in consideration of these points, and its purpose is to provide a roll paper holder that allows users to easily pull out the paper with one hand and that can be made smaller or simpler than conventional roll paper holders, and a portable toilet equipped with the same. [Means for solving the problem]

[0008] The roll paper holder of the present invention comprises a paper support member having a support rod into which the roll paper is inserted and a first sliding portion provided at one end of the support rod. The roll paper holder also comprises a paper pressing member having a first support post that engages with the first sliding portion so that it can slide vertically, and a pressure bar that extends horizontally from the first support post. The roll paper holder is configured so that the roll paper is clamped between the pressure bar and the support rod.

[0009] According to the above-mentioned roll paper holder, the roll paper holder is configured to be sandwiched between the pressure bar of the paper pressure member and the support bar of the paper support member, and the paper pressure member is slidable up and down. Users can easily pull out and detach paper from the roll paper holder with one hand. Furthermore, according to the above-mentioned roll paper holder, the paper pressure member is slidably engaged with the paper support member. Therefore, a member that supports the paper support member and slidably supports the paper pressure member is not required. This allows for a more compact and simplified configuration than conventional roll paper holders. Furthermore, according to the above-mentioned roll paper holder, the first sliding portion with which the first support rod of the paper pressure member slidably engages up and down is provided at one end of the support bar. The portion with which the paper pressure member slidably engages up and down (i.e., the first sliding portion) is provided near the support bar. This allows for a further compact and simplified configuration.

[0010] The pressure bar may have a rod-shaped body extending horizontally and a cutting blade provided below the rod-shaped body. When viewed from the axial direction of the support bar, the horizontal distance between the cutting edge of the cutting blade and the axis of the support bar may be 30 mm or less.

[0011] When viewed from the axial direction of the support rod, the top of the roll of paper is located directly above the axis of the support rod. Because the horizontal distance between the cutting edge of the cutting blade and the axis of the support rod is relatively short, the cutting edge of the cutting blade is located near the top of the roll of paper. This makes it easy for users to pull out the paper horizontally. The cutting blade also makes it easy to cut the paper.

[0012] The roll paper holder may be configured so that the pressure bar presses the roll paper supported by the support bar with a load of 30 gf or more.

[0013] According to the above features, the roll of paper can be securely clamped between the pressure bar and the support bar, and the user can easily pull out and separate the paper with one hand.

[0014] The paper support member may have a second sliding portion provided at the other end of the support rod. The paper pressing member may have a second support post that engages with the second sliding portion so as to be slidable up and down. The pressing rod may span between the first support post and the second support post.

[0015] According to the above, the roll paper can be more stably held, which makes it easier to pull out and separate the paper.

[0016] The paper support member may have a fitting portion having a C-shaped cross section that fits into the support pole, and may also include a fixing portion provided on the first sliding portion.

[0017] According to the above, the roll paper holder can be attached to the support by fitting the fitting portion into the support from the side.

[0018] The roll paper holder may include a fixing adapter with a C-shaped cross section that fits into a support pole. The paper support member may include a fixing portion that has a C-shaped cross section fitting into the fixing adapter and is provided on the first sliding portion. The roll paper holder may be attached to the portable toilet by fitting the fixing adapter into a support pole provided on the portable toilet.

[0019] According to the above, the roll paper holder can be easily attached to the support pole of the portable toilet. A user of the portable toilet can use the roll paper holder to use toilet paper.

[0020] The roll paper holder may be attached to the wall by fitting the fitting portion into a support provided on the wall.

[0021] The roll paper holder may include a base, and a support arm connected to the base and the first sliding portion, and supporting the support rod above the base.

[0022] The first sliding part and the second sliding part may be formed with locking parts for locking hooks, and the roll paper holder may be configured to be supported by a hook locked to the locking part of the first sliding part and a hook locked to the locking part of the second sliding part.

[0023] A portable toilet according to the present invention is provided with the roll paper holder. [Effects of the Invention]

[0024] According to the present invention, it is possible to provide a roll paper holder that allows users to easily pull out paper with one hand and that is smaller or simpler than conventional roll paper holders, and a portable toilet equipped with the same. [Brief explanation of the drawings]

[0025] [Figure 1] 1 is a perspective view of a portable toilet equipped with a roll paper holder according to a first embodiment. FIG. [Figure 2] FIG. 2 is a perspective view of the roll paper holder. [Figure 3] FIG. 2 is a front view of the roll paper holder. [Figure 4] FIG. 2 is a rear view of the roll paper holder. [Figure 5] FIG. 2 is a side view of the roll paper holder. [Figure 6] FIG. 2 is a plan view of the roll paper holder. [Figure 7] FIG. 2 is a bottom view of the roll paper holder. [Figure 8] FIG. [Figure 9] 10A and 10B are diagrams illustrating the shape of the tip of a cutting blade according to a modified example. [Figure 10]FIG. 4 is a diagram showing the cutting edge angle of a cutting blade. [Figure 11] FIG. 10 is a diagram showing the mounting angle of a cutting blade. [Figure 12] FIG. 4 is a cross-sectional view taken along line XII-XII in FIG. 3. [Figure 13] FIG. 2 is a schematic diagram showing how toilet paper is cut by a cutting blade. [Figure 14] FIG. 10 is a diagram showing the longitudinal breaking length of the cut paper. [Figure 15] FIG. 10 is a perspective view of a roll paper holder according to a second embodiment. [Figure 16] FIG. [Figure 17] FIG. 1 is a perspective view of a support post and a fixing adapter. [Figure 18] FIG. 11 is a perspective view of a roll paper holder according to a third embodiment. [Figure 19] FIG. 10 is a perspective view of a roll paper holder according to a fourth embodiment. [Figure 20] FIG. 10 is a perspective view of a roll paper holder according to a fifth embodiment. [Figure 21] FIG. 10 is a front view of a roll paper holder according to another embodiment. [Figure 22] FIG. 10 is a plan view of a roll paper holder according to another embodiment. [Figure 23] FIG. 10 is a bottom view of a roll paper holder according to another embodiment. [Figure 24] 10(a) is a perspective view of a support post according to another embodiment, and FIG. 10(b) is a perspective view showing a state in which a fixing adapter is fitted into the support post according to another embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0026] (First embodiment) Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Figure 1 is a perspective view of a portable toilet 1 according to this embodiment. In the following description of the portable toilet 1, unless otherwise specified, the terms front, rear, left, right, top, and bottom refer to the respective directions as seen by a user sitting on a toilet seat 5, which will be described later.

[0027] <Portable toilet> The portable toilet 1 includes a seat 3, legs 4 supporting the seat 3, a toilet seat 5, a backrest 6 positioned behind the seat 3, left and right armrests 7, armrest supports 8 supporting the armrests 7, a lid 9, and a bucket 10. The portable toilet 1 also includes a roll paper holder 20 for holding toilet paper.

[0028] The seat 3 is formed in a box shape that opens upward. The bucket 10 is attached to the inside of the seat 3 through the opening of the seat 3. The bucket 10 is configured to be detachable from the seat 3 at the top and bottom. The bucket 10 is an example of a "toilet bowl." The legs 4 support the seat 3 and support the bucket 10 via the seat 3.

[0029] The toilet seat 5 is rotatably attached to the rear of the seat portion 3. The toilet seat 5 can be rotated back and forth. When the toilet seat 5 is rotated forward, it can be laid flat. When the toilet seat 5 is laid flat, it is positioned above the bucket 10, allowing a user to sit on the toilet seat 5. When the toilet seat 5 is rotated backward, it can be raised up, opening up the inside of the seat portion 3. By raising the toilet seat 5 up, the bucket 10 can be removed upward from the seat portion 3, and the bucket 10 can be attached from above toward the seat portion 3.

[0030] The lid 9 is rotatably attached to the rear of the seat 3. Although not particularly limited, in this embodiment the lid 9 is configured to be foldable. By rotating the lid 9 forward and unfolding it, the toilet seat 5 and bucket 10 can be covered with the lid 9. By rotating the lid 9 backward and folding it down, the toilet seat 5 and bucket 10 are opened, and the user can sit on the toilet seat 5.

[0031] The armrest supports 8 are arranged on the sides of the bucket 10. More specifically, the left armrest support 8 is arranged to the left of the bucket 10, and the right armrest support 8 is arranged to the right of the bucket 10. In this embodiment, two armrest supports 8, arranged in front and behind, are arranged on each of the left and right sides of the bucket 10. The armrest supports 8 extend upward from the seat 3. The front armrest support 8 and the rear armrest support 8 are connected to a rod 8A that extends in the front-to-rear direction. The front armrest support 8 and the rear armrest support 8 are connected to each other via the rod 8A.

[0032] The armrests 7 are supported by front and rear armrest supports 8. The armrests 7 extend in the front and rear directions. The armrests 7 are disposed on the sides of the bucket 10. Specifically, the left armrest 7 is disposed to the left of the bucket 10, and the right armrest 7 is disposed to the right of the bucket 10. The armrest supports 8 may be configured to be movable up and down so that the height of the armrests 7 can be adjusted.

[0033] <Roll paper holder> The roll paper holder 20 is attached to the front armrest support 8. The roll paper holder 20 is detachable from the armrest support 8. The roll paper holder 20 may be attached to the front left armrest support 8, but in this example it is attached to the front right armrest support 8.

[0034] Figure 2 is a perspective view of the roll paper holder 20. Figures 3, 4, 5, 6, and 7 are respectively a front view, a rear view, a left side view, a plan view, and a bottom view of the roll paper holder 20. Next, the roll paper holder 20 will be described in detail with reference to Figures 2 to 7.

[0035] As shown in Figure 2, the roll paper holder 20 includes a paper support member 30 and a paper pressing member 40. As shown in Figure 3, the roll paper holder 20 is configured to sandwich toilet paper 100 between the paper support member 30 and the paper pressing member 40. In Figure 3, reference numeral 101 denotes the roll core of the toilet paper 100, and reference numeral 102 denotes the paper 102 wound around the roll core 101. The toilet paper 100 is made up of the paper 102 wound around the roll core 101.

[0036] First, the paper support member 30 will be described. The paper support member 30 rotatably supports the toilet paper 100. As shown in FIG. 2, the paper support member 30 includes a support rod 31, a first sliding portion 32A provided at one end of the support rod 31, a second sliding portion 32B provided at the other end of the support rod 31, and a fixed portion 33 provided on the first sliding portion 32A. The second sliding portion 32B has a convex shape relative to the support rod 31 and prevents the toilet paper 100 from shifting laterally. The other end of the support rod 31 is provided with a wall portion 31W that extends from the upper end of the other end of the support rod 31 radially outward (here, laterally, but can also be upward) of the support rod 31 and restricts lateral movement of the toilet paper 100. In this embodiment, the paper support member 30 is a single member. The support rod 31, the first sliding portion 32A, the second sliding portion 32B, and the fixed portion 33 are integrally formed. However, this is not particularly limited, and the paper support member 30 may be composed of multiple members. At least one of the support rod 31, the first sliding portion 32A, the second sliding portion 32B, and the fixed portion 33 may be formed separately from at least one of the others and then assembled together. The paper support member 30 may be formed, for example, from a synthetic resin. The paper support member 30 may be formed, for example, from PP (polypropylene), PE (polyethylene), ABS, PVC (polyvinyl chloride) resin, etc.

[0037] The support rod 31 extends straight. The support rod 31 is inserted into the roll core 101 of the toilet paper 100 (see FIG. 3). The support rod 31 is configured to support the toilet paper 100. In the embodiment, the cross-sectional shape of the support rod 31 is circular. However, the cross-sectional shape of the support rod 31 is not particularly limited, and may be, for example, an oval shape, a polygonal shape, etc. The support rod 31 may be solid or hollow.

[0038] A first sliding hole 35A is formed in the first sliding portion 32A, and a second sliding hole 35B is formed in the second sliding portion 32B. The first sliding hole 35A and the second sliding hole 35B extend in a direction perpendicular to the extension direction of the support rod 31. Hereinafter, the extension direction of the support rod 31 will be referred to as the X direction, and the extension direction of the first sliding hole 35A and the second sliding hole 35B will be referred to as the Z direction. The Z direction is perpendicular to the X direction. The direction from the first sliding hole 35A to the second sliding hole 35B along the X direction will be referred to as the X1 direction, and the direction opposite to the X1 direction will be referred to as the X2 direction (see FIG. 6). The direction perpendicular to the X and Z directions will be referred to as the Y direction. Here, the X and Y directions are horizontal directions, and the Z direction is vertical.

[0039] The cross-sectional shapes of the first slide hole 35A and the second slide hole 35B are formed as ellipses whose dimensions in the X direction are smaller than their dimensions in the Y direction. However, the shapes of the first slide hole 35A and the second slide hole 35B are not particularly limited, and include, for example, cross-sectional shapes such as circles, ovals (including ellipses and track shapes), polygons (such as rectangles and hexagons), and convex and concave shapes with a portion of the periphery cut out. In this embodiment, the shapes and dimensions of the first slide hole 35A and the second slide hole 35B are equal to each other. However, this is not particularly limited, and either or both of the shapes and dimensions of the first slide hole 35A and the second slide hole 35B may be different from each other.

[0040] In this embodiment, the first sliding hole 35A and the second sliding hole 35B are holes with closed inner peripheral edges. The first sliding portion 32A and the second sliding portion 32B are formed so as to surround the entire periphery of the first support column 41 and the second support column 42, respectively, which will be described later. However, one or both of the first sliding hole 35A and the second sliding hole 35B may be holes with a part of the inner peripheral edge open. The first sliding portion 32A and the second sliding portion 32B may be formed so as to have a shape with a part cut out on the side, or so as to have a shape in which only the upper surface portion and the lower surface portion surround the entire periphery.

[0041] In the present embodiment, when the first slide hole 35A and the second slide hole 35B are not circular, the inner diameters of the first slide hole 35A and the second slide hole 35B refer to their respective hydraulic diameters. For example, when the opening area of ​​the first slide hole 35A is A and the circumference is P, the inner diameter D of the first slide hole 35A is D = (4A) / P. When the first slide hole 35A is a hole with a partially open inner periphery, the hydraulic diameter cannot be calculated strictly. Therefore, when the first slide hole 35A is a hole with a partially open inner periphery, the inner diameter of the first slide hole 35A is calculated assuming that one end and the other end of the spaced-apart inner periphery are connected by a linear edge. The inner diameter of the second slide hole 35B is defined in a similar manner. The inner diameters of the first slide hole 35A and the second slide hole 35B are not particularly limited, but are preferably 5 mm or more, more preferably 15 mm or more. The inner diameters of the first slide hole 35A and the second slide hole 35B are preferably 40 mm or less, more preferably 30 mm or less, and even more preferably 25 mm or less.

[0042] The lengths of the first slide hole 35A and the second slide hole 35B in the Z direction are not particularly limited, but are 20 mm in this embodiment. The ratio of the length in the Z direction to the inner diameter of the first slide hole 35A and the second slide hole 35B (here, the Z direction is the up-down direction, so it is height / inner diameter) is, for example, 10 / 20 or more, preferably 15 / 20 or more, and more preferably 20 / 20 or more. The ratio is, for example, 100 / 20 or less, preferably 80 / 20 or less, and even more preferably 50 / 20 or less.

[0043] The positions of the upper surfaces of the first sliding portion 32A and the second sliding portion 32B (note that in this embodiment, the upper surfaces are flat, so the upper ends and upper surfaces of the first sliding portion 32A and the second sliding portion 32B are synonymous) are at a height of 10 mm or less from the position of the upper end of the support rod 31. The positions of the upper surfaces of the first sliding portion 32A and the second sliding portion 32B are preferably at a height of 5 mm or less, more preferably 2 mm or less, from the position of the upper end of the support rod 31.

[0044] The vertical length of the first sliding part 32A is 100 mm or less, preferably 60 mm or less, and more preferably 40 mm or less. The roll core 101 of the toilet paper 100 is inserted into the support rod 31, and in this embodiment, the roll core 101 is inserted from the second sliding part 32B side. To make it easier to insert the roll core 101, the vertical length of the second sliding part 32B is 40 mm or less, and more preferably 30 mm or less.

[0045] The fixed part 33 is a part that is fixed to the portable toilet 1. In this embodiment, the fixed part 33 is configured to be detachably attached to the armrest support 8 of the portable toilet 1. As shown in FIG. 6, the fixed part 33 has an inset part 33A with a C-shaped cross section, and an arm part 33B that connects the inset part 33A and the first sliding part 32A. However, the configuration of the fixed part 33 is not particularly limited. For example, the arm part 33B may be eliminated, and the inset part 33A may be directly connected to the first sliding part 32A.

[0046] In this specification, the term "C-shaped cross section" refers to a cross section that surrounds the center (see reference numeral 33c in FIG. 6) over an angle θ range that is greater than 180 degrees and less than 360 degrees. The C-shaped cross section is not limited to a cross section formed by cutting out a portion of the circumference of a perfect circle, but also includes cross sections formed by cutting out a portion of the circumference of an oval (including an ellipse, a truck shape, etc.) or a polygon (e.g., a square, a hexagon, etc.). The opening direction of the C shape can be set to any direction. For example, it may be in the axial direction of the support rod 31, or it may be tilted left or right from the axial direction of the support rod 31.

[0047] In this embodiment, the arm portion 33B is curved. However, the shape of the arm portion 33B is not particularly limited, and the arm portion 33B may be bent or extend straight. The arm portion 33B may extend along a straight line L1 (see FIG. 6) that passes through the center of the first sliding hole 35A and the center of the second sliding hole 35B, but in this embodiment, the arm portion 33B extends in the X2 direction and the Y1 direction from the first sliding portion 32A.

[0048] As shown in FIG. 6, when viewed from the Z direction, the fitting portion 33A is provided on the Y1 side of the straight line L1 connecting the center of the first slide hole 35A and the center of the second slide hole 35B. In this embodiment, the cross-sectional shape of the fitting portion 33A is formed in a shape like a perfect circle with a portion of the periphery cut out. A plurality of recesses 36 are formed in the inner peripheral portion of the fitting portion 33A and aligned in the circumferential direction. Each recess 36 extends in the Z direction (see FIG. 4). However, the recesses 36 are not necessarily required and can be omitted.

[0049] As shown in FIG. 5, a rubber or elastomer band 37 is wound around the fitting portion 33A. While the number of bands 37 is not particularly limited, two bands 37 are wound around the fitting portion 33A. As shown in FIG. 6, one band 37 is wound around one circumferential half of the fitting portion 33A, and the other band 37 is wound around the other circumferential half of the fitting portion 33A. As shown in FIG. 5, the bands 37 are wound along the Z direction. A portion of the band 37 is provided on the inner circumferential surface of the fitting portion 33A. The band 37 is an example of an elastic body and constitutes a "rotation restricting portion." While a general band 37 can be used, in this embodiment, a band having a durometer type A hardness of 80 to 30 degrees conforming to JIS K 6253-3 is used. Examples of rubber materials that can be used include silicone rubber, natural rubber, nitrile rubber, and butyl rubber. Examples of elastomer materials that can be used include olefin-based elastomers and styrene-based elastomers. In particular, silicone rubber is most suitable from the viewpoint of durability against detergents and long-term stability of resilience.

[0050] Next, the paper pressing member 40 will be described. As shown in FIG. 2, the paper pressing member 40 has a first support post 41, a second support post 42, and a pressure bar 43. In this embodiment, the paper pressing member 40 is a single member, and the first support post 41, the second support post 42, and the pressure bar 43 are integrally formed. However, this is not particularly limited, and the paper pressing member 40 may be composed of multiple members. The paper pressing member 40 can be made of, for example, synthetic resin. The paper pressing member 40 can be made of, for example, PP (polypropylene), PE (polyethylene), ABS, PVC (polyvinyl chloride) resin, etc.

[0051] The first support column 41 and the second support column 42 are slidably inserted into the first slide hole 35A and the second slide hole 35B of the paper support member 30, respectively. The cross-sectional shapes of the first support column 41 and the second support column 42 are not particularly limited. However, it is preferable that the cross-sectional shape of the first support column 41 matches the shape of the first slide hole 35A so that the first support column 41 can slide smoothly into the first slide hole 35A. It is also preferable that the cross-sectional shape of the second support column 42 matches the shape of the second slide hole 35B so that the second support column 42 can slide smoothly into the second slide hole 35B. Here, the cross-sectional shapes of the first support column 41 and the second support column 42 are formed to be similar to the shapes of the first slide hole 35A and the second slide hole 35B, respectively, and are formed as ellipses whose dimensions in the X direction are smaller than their dimensions in the Y direction. The first support column 41 and the second support column 42 extend in the Z direction. The first support column 41 and the second support column 42 may be solid or hollow.

[0052] The clearance between the outer peripheral surface of the first support pillar 41 and the inner peripheral surface of the first slide hole 35A and the clearance between the outer peripheral surface of the second support pillar 42 and the inner peripheral surface of the second slide hole 35B are not particularly limited, but are preferably 1.2 mm or less, more preferably 0.7 mm or less, and even more preferably 0.5 mm or less. The clearance between the outer peripheral surface of the first support pillar 41 and the inner peripheral surface of the first slide hole 35A is half the difference between the inner diameter of the first slide hole 35A and the outer diameter of the first support pillar 41. The clearance between the outer peripheral surface of the second support pillar 42 and the inner peripheral surface of the second slide hole 35B is half the difference between the inner diameter of the second slide hole 35B and the outer diameter of the second support pillar 42.

[0053] The pressure bar 43 extends in the X direction from the first support pole 41 and spans the upper end of the first support pole 41 and the upper end of the second support pole 42. The pressure bar 43 is disposed above the support pole 31 of the paper support member 30. The pressure bar 43 is configured to sandwich the toilet paper 100 between itself and the support pole 31 (see FIG. 3). The pressure bar 43 has a rod-shaped body 43A extending in the X direction and a cutting blade 43B provided below the rod-shaped body 43A.

[0054] The paper pressing member 40 is configured to hold down the toilet paper 100 by the weight of the paper pressing member 40. In other words, the paper pressing member 40 is configured to pinch the toilet paper 100 between the pressure bar 43 and the support bar 31 by the weight of the paper pressing member 40. The mass of the paper pressing member 40 is not particularly limited, but in this embodiment it is 30 g or more. The paper pressing member 40 is configured so that the pressure bar 43 holds down the toilet paper 100 with a load of 30 gf or more.

[0055] The cutting blade 43B is a blade used to cut the toilet paper 100. There is no particular limitation on the shape of the cutting blade 43B, but here, as shown in FIG. 8, it has a plurality of blades 43Ba arranged in a comb-like shape. There are no particular limitations on the width 43Bw and pitch 43Bp of the blades 43Ba of the cutting blade 43B, but for example, a range of 1 mm to 5 mm is preferable. In this embodiment, the width 43Bw and pitch 43Bp are 1.2 mm. There is no particular limitation on the shape of the tip of the blade 43Ba. As shown in FIG. 8, the tip of the blade 43Ba may be formed in a straight line. Furthermore, as shown in FIG. 9(a), the tip of the blade 43Ba may be formed in a concave shape. As shown in FIG. 9(b), the tip of the blade 43Ba may be formed in a convex shape.

[0056] The above-described shape of the cutting blade 43B is merely an example. The cutting blade 43B does not have to be formed in a comb-like shape. For example, the cutting blade 43B may be formed by a single continuous blade extending in the X direction.

[0057] As shown in FIG. 10, the cutting blade 43Ba of the cutting blade 43B protrudes in the Y2 direction. Hereinafter, the tip of the cutting blade 43Ba of the cutting blade 43B will be referred to as the cutting edge of the cutting blade 43B. The cutting edge angle α of the cutting blade 43B is not particularly limited, but can be, for example, 15° to 80°. In this embodiment, the cutting edge angle α is 60°. The cutting blade 43B extends in the Y2 direction from the rod-shaped body 43A and extends horizontally from the rod-shaped body 43A. In this embodiment, the angle β of the extending direction of the cutting blade 43B with respect to the Y direction (horizontal direction) (hereinafter referred to as the mounting angle of the cutting blade 43B) is 0°. However, the value of the mounting angle β of the cutting blade 43B is not particularly limited. For example, as shown in FIG. 11, the mounting angle β of the cutting blade 43B may be 0° to 30°. The sum of α and β is 90° or less.

[0058] The position of the cutting edge of the cutting blade 43B in the Y direction is not particularly limited, but can be, for example, within 30 mm from the axis 31c of the support rod 31. FIG. 12 is a cross-sectional view taken along line XII-XII in FIG. 3, showing the roll paper holder 20 at the midpoint of the cutting blade 43B in the X direction. As shown in FIG. 12, the cutting edge 43Bt of the cutting blade 43B at the midpoint in the X direction is aligned with the axis 31c of the support rod 31. However, the cutting edge 43Bt of the cutting blade 43B may be positioned within 30 mm in the Y1 direction or within 30 mm in the Y2 direction from the axis 31c of the support rod 31. In other words, the distance in the Y direction between the cutting edge 43Bt of the cutting blade 43B and the axis 31c of the support rod 31 may be 30 mm or less. Furthermore, the distance in the Y direction between the cutting edge 43Bt of the cutting blade 43B and the axis 31c of the support rod 31 may be 20 mm or less, or may be 17 mm or less. More preferably, the distance in the Y direction between the cutting edge 43Bt of the cutting blade 43B and the axis 31c of the support rod 31 is 15 mm or less, even more preferably 10 mm or less, still more preferably 5 mm or less, and particularly preferably 2 mm or less.

[0059] As shown in Fig. 6, when viewed from the Z direction, the cutting blade 43B is curved so as to be concave in the Y1 direction. Specifically, in this embodiment, the cutting blade 43B is formed in a comb-like shape, and the tips of the multiple blades aligned in the X direction are aligned along a curved line concave in the Y1 direction when viewed from the Z direction. However, the shape of the cutting blade 43B when viewed from the Z direction is not limited to being concave. For example, the cutting blade 43B may extend linearly when viewed from the Z direction, or may be curved so as to be convex in the Y2 direction when viewed from the Z direction.

[0060] When no toilet paper 100 is sandwiched, the height difference between the upper end of the paper pressing member 40 and the lower end of the cutting blade 43B is 5 mm or less, and preferably 3 mm or less.

[0061] The above is the configuration of the roll paper holder 20. Next, how to use the roll paper holder 20 will be explained.

[0062] <How to use the roll paper holder> The roll paper holder 20 according to this embodiment can be easily attached to and detached from the armrest support 8 of the portable toilet 1. When attaching the roll paper holder 20 to the portable toilet 1, for example, a user grasps the support rod 31 of the paper support member 30 and presses the opening of the C-shaped fitting portion 33A against the armrest support 8 from the side of the armrest support 8. In this embodiment, the paper support member 30 is made of synthetic resin, and the fitting portion 33A is flexible. When the opening of the fitting portion 33A is pressed against the armrest support 8, the fitting portion 33A is expanded by the armrest support 8, and the fitting portion 33A fits into the armrest support 8. This attaches the paper support member 30 to the armrest support 8. Then, the first support 41 and the second support 42 are inserted into the first sliding hole 35A and the second sliding hole 35B, respectively, from above, and the paper holder 40 is assembled to the paper support member 30. This allows the roll paper holder 20 to be attached to the portable toilet 1 (see FIG. 1).

[0063] In the above mounting example, the paper support member 30 is mounted on the armrest support 8, and then the paper pressing member 40 is assembled to the paper support member 30, but it is also possible to assemble the paper pressing member 40 to the paper support member 30, and then mount the paper support member 30 to the armrest support 8. In other words, it is also possible to mount the paper support member 30 to the armrest support 8 while the paper pressing member 40 and the paper support member 30 remain assembled to each other.

[0064] When attaching toilet paper 100 to the roll paper holder 20, first remove the paper pressing member 40 from the paper support member 30. Because the first support post 41 and the second support post 42 are slidable relative to the first sliding hole 35A and the second sliding hole 35B, respectively, the user can simply grasp and lift the pressing bar 43 to pull the first support post 41 and the second support post 42 out of the first sliding hole 35A and the second sliding hole 35B. This makes it easy to remove the paper pressing member 40 from the paper support member 30. After removing the paper pressing member 40, the user inserts the roll core 101 of the toilet paper 100 from the second sliding portion 32B toward the support rod 31. Then, after inserting the roll core 101 of the toilet paper 100 into the support rod 31, attach the paper pressing member 40 to the paper support member 30. That is, while grasping the pressure bar 43, the user inserts the first support post 41 into the first slide hole 35A and the second support post 42 into the second slide hole 35B. After inserting the first support post 41 and the second support post 42 into the first slide hole 35A and the second slide hole 35B, respectively, and then releasing the pressure bar 43, the toilet paper 100 is sandwiched between the paper presser member 40 and the paper support member 30 due to the weight of the paper presser member 40. In this way, the toilet paper 100 can be attached to the roll paper holder 20.

[0065] The roll paper holder 20 is attached to the portable toilet 1 by fitting the fitting portion 33A, which has a C-shaped cross section, into the armrest support 8. The fitting portion 33A is held in the armrest support 8 by the frictional force between the inner peripheral surface of the fitting portion 33A and the outer peripheral surface of the armrest support 8, and by the frictional force between the band 37 wrapped around the fitting portion 33A and the outer peripheral surface of the armrest support 8. Therefore, rotation of the fitting portion 33A is restricted, and the fitting portion 33A will not rotate relative to the armrest support 8 unless a force exceeding a predetermined value that exceeds these frictional forces is applied. On the other hand, by applying a force exceeding the predetermined value that exceeds these frictional forces, the fitting portion 33A can be rotated relative to the armrest support 8. This allows the user to change the position of the roll paper holder 20 to the desired position. The user can place the toilet paper 100 in a position that makes it easy to remove the paper.

[0066] For example, as shown in FIG. 1, the roll paper holder 20 can be installed on the right front armrest support 8 so that the cutting blade 43B faces rightward and rearward. In other words, the roll paper holder 20 attached to the right front armrest support 8 can be installed in an orientation in which the Y2 direction (see FIG. 6) faces rightward and rearward. In this case, a user sitting on the toilet seat 5 of the portable toilet 1 can pull the toilet paper 102 out of the roll paper holder 20 simply by grasping the paper 102 of the toilet paper 100 with their right hand and pulling it rightward and rearward. The toilet paper 100 is pressed downward by the weight of the paper pressing member 40, and is sandwiched between the paper pressing member 40 and the paper support member 30. Therefore, the user does not need to hold the toilet paper 100 with their left hand, and can easily pull the toilet paper 100 out with just their right hand.

[0067] Additionally, the right and rear of the roll paper holder 20 are open. There are no obstructions, such as walls, to the right and rear of the roll paper holder 20. Therefore, when a user pulls out the paper 102 from the roll paper holder 20, their right hand will not come into contact with any obstructions. Users can easily pull out the paper 102 from the roll paper holder 20. Furthermore, because there is no plate member surrounding the toilet paper 100, the toilet paper 102 can be pulled out by grasping and rotating the toilet paper 100 itself.

[0068] Incidentally, when the leading edge of the paper 102 and the cutting edge of the cutting blade 43B are aligned, it is difficult to pinch the leading edge of the paper 102. However, according to this embodiment, the toilet paper 100 can be easily rotated in the opposite direction to the direction of the cutting blade 43B, and by rotating it in the opposite direction, the leading edge of the paper 102 drips down. This makes it easy to pinch the leading edge of the paper 102. According to this embodiment, when the leading edge of the paper 102 and the cutting edge of the cutting blade 43B are aligned, the toilet paper 100 can be rotated in the opposite direction and the paper 102 can be easily pulled out.

[0069] After the user pulls out the desired length of paper 102 from the paper roll holder 20, the user cuts the paper 102 using the cutting blade 43B. Specifically, the user holds the paper 102 and moves it leftward and backward, over the presser bar 43. After pulling out the desired length, the user pulls it rightward and forward. This causes the paper 102 to fold back at the point of contact with the cutting blade 43B and be cut by the cutting blade 43B. Note that, as shown schematically in FIG. 13 , in this embodiment, the cutting blade 43B is curved so as to be concave in the Y1 direction. Therefore, when the paper 102 is pulled in the Y1 direction, the paper 102 folds back at the point of contact with the cutting blade 43B in the Y1 direction, but the cutting portion 102a of the paper 102 tends to make point contact with the cutting blade 43B. Therefore, the paper 102 is cut with a localized force that is greater than when the cutting portion 102a makes line contact with the cutting blade 43B. Therefore, the user can cut the paper 102 well with a relatively small amount of force.

[0070] Furthermore, the left and front of the paper roll holder 20 are open, and there are no obstructions to the left and front of the paper roll holder 20. Therefore, when the user folds back and cuts the paper 102, their right hand holding the paper 102 will not come into contact with any obstructions. This allows the user to easily separate the paper 102 from the toilet paper 100. In this way, the user can separate the desired length of paper 102 from the toilet paper 100 held in the paper roll holder 20. Furthermore, because there is no plate member surrounding the toilet paper 100, the user can grasp and rotate the toilet paper 100 itself to pull out the paper 102. Furthermore, the toilet paper 102 can be pulled out even if the toilet paper 100 is rotated in the opposite direction to the direction of the cutting blade 43B.

[0071] As the toilet paper 100 is used, the amount of toilet paper 100 remaining in the roll paper holder 20 decreases. That is, the diameter of the toilet paper 100 wound around the roll core 101 (hereinafter referred to as the winding diameter) gradually decreases as the toilet paper 100 is used. According to this embodiment, the roll paper holder 20 is configured to clamp the toilet paper 100 between the pressure bar 43 and the support bar 31. Furthermore, since the first sliding portion 32A and the second sliding portion 32B guide the first support rod 41 and the second support rod 42 downward, the pressure bar 43 moves straight downward as the toilet paper 100 is used. Even if the amount of toilet paper 100 remaining decreases, the position and angle of the pressure bar 43 in the Y direction relative to the toilet paper 100 do not change much. Therefore, the pressure bar 43 can hold the toilet paper 100 down well regardless of the amount of toilet paper 100 remaining. Furthermore, regardless of the amount of toilet paper 100 remaining, the toilet paper 100 can be cut well by the cutting blade 43B.

[0072] <Toilet paper tearing and pulling tests> The inventors of the present application conducted a tear-off test and a pull-out test of toilet paper 100 using the roll paper holder 20 according to the embodiment. The test will now be described.

[0073] For the test, we used 100 sheets of toilet paper with perforations spaced 22 cm apart, under the product name "nepia Nepinepi Unscented [double / 25m / unscented]" manufactured by Oji Nepia Co., Ltd. The procedure for the cutting test was as follows: Steps 1 to 3. Step 1: Cut the toilet paper 100 along the perforations and align the leading edge. Next, pull out the leading edge of the paper 102 horizontally (direction Y2 in FIG. 6) by 15 cm, and then stand the paper 102 vertically (direction Z) while pressing it against the cutting blade 43B. Operation 2: While making sure that the paper 102 pulled out from the toilet paper 100 does not become loose, pinch one end of the leading edge of the paper 102 (one end in the widthwise direction of the paper 102, the end on the X2 direction side in FIG. 6). Step 3: Quickly pull the paper 102 toward the end opposite the pinched end (the other end in the short direction of the paper 102) (in the X1 direction), without recoil.

[0074] The procedure for the toilet paper 100 pull-out test is as follows. First, the paper 102 is cut along the perforation and the leading edge is made even. Next, the leading edge of the paper 102 is pinched between the index finger and thumb of one hand and pulled out vigorously for 60 cm in the horizontal direction (direction Y2 in Figure 6). The flex and resistance of the paper 102 are then evaluated, and the higher the score based on the following criteria, the better the paper is judged to be. The paper was pulled out more than necessary and bent: 1 point The paper was pulled out moderately, but the pulling action was heavy: 2 points The paper is pulled out just right and the action is easy: 3 points

[0075] The specifications of each component are as follows: (1) Paper support member The paper support member 30 was injection molded as a single unit using polypropylene resin. The support rod 31 had a diameter of 20 mm and a length of 125 mm. The diameters of the first slide hole 35A and the second slide hole 35B were 20 mm plus twice the clearance (mm) in Tables 1 and 2 described below. The paper support member 30 was injection molded as a single unit. Polypropylene was used as the material. (2) Paper holder The pressure bar 43 was injection molded as a single piece using polypropylene resin. The pressure bar 43 was formed into a plate shape with a length of 180 mm, a width of 20 mm, and a thickness of 2 mm, and cutting blades 43B were formed extending 60 mm from the center to the left and right. The cutting blades 43B were comb-like with a width of 1.2 mm and a pitch of 1.2 mm. The attachment angle and cutting edge angle of the cutting blades 43B are as shown in Table 2. Polypropylene resin pipes (outer diameter 20 mm, inner diameter 16.2 mm) were connected to the underside of both ends of the pressure bar 43 to form the first support column 41 and the second support column 42. (3) Mass of paper holder For the paper pressing member 40 with a mass of 20 g, polypropylene resin pipes (first support post 41 and second support post 42) with a length of 60 mm were used. For the paper pressing member 40 with a mass of 30 g, polypropylene resin pipes with a length of 100 mm were used. For paper pressing members 40 with a mass of 50 g or more, a plate-shaped weight was placed on the plate-shaped pressing rod 43 to adjust the mass.

[0076] After performing steps 1 to 3 using the roll paper holder 20 of each example, the breaking length LP (see Figure 14) in the longitudinal direction of the paper 102 cut from the toilet paper 100 was measured. Note that if the breaking portion 102d of the paper 102 is cut in a straight line in the short direction, the breaking length LP is 0. The shorter the breaking length LP, the better the paper 102 can be evaluated as having been cut. For each example, steps 1 to 3 were performed three times, and three measurements were taken. The average of the three measurements was calculated as the breaking length LP for each example.

[0077] In the roll paper holder 20 according to the embodiment, the clearance between the first support post 41 and the inner circumferential surface of the first slide hole 35A is equal to the clearance between the second support post 42 and the inner circumferential surface of the second slide hole 35B. In Tables 1 and 2 below, these clearances are referred to as the "clearance between the support post and the slide hole." Furthermore, the first slide hole 35A and the second slide hole 35B have the same inner diameter / height values. In Tables 1 and 2, these values ​​are referred to as the "inner diameter / height of the slide hole."

[0078] [Table 1] In Examples 1 to 4, the mass of the paper pressing member 40 differs, but the other conditions are the same. As can be seen from Table 1, in Examples 1 to 4, the breaking length LP value (hereinafter simply referred to as the LP value) increases as the mass decreases. When the mass was 30 g, the results were slightly inferior to when it was 50 g, and even worse when it was 20 g. In Example 5, the clearance was made smaller than in Example 3, and as a result, the LP value was excellent even at 30 g. Furthermore, in Example 4, the mass of the pressing member was too low, so the force holding the paper was weak and more paper was pulled out than necessary.

[0079] [Table 2] In Example 6, where the ratio of the inner diameter to the height of the sliding hole exceeded 2, the paper tore vertically and could not be cut. In Examples 7 and 8, the ratio of the inner diameter to the height of the sliding hole was 2 or less, and the LP value was good. In Examples 9 to 12, the mass of the paper holding member 40 was increased and the clearance was reduced. However, in Example 9, where the ratio of the inner diameter to the height of the sliding hole exceeded 2, the paper tore and could not be cut. On the other hand, in Examples 10 to 12, when the ratio of the inner diameter to the height of the sliding hole was 2 or less, the paper could be cut, and the LP value improved as the ratio of the inner diameter to the height of the sliding hole decreased. Furthermore, in Examples 9 to 12, the mass of the paper holding member 40 was large, and the results of the paper pull-out test were somewhat poor.

[0080] Table 3 below summarizes data on the cutting edge angle α and the mounting angle β of the cutting blade 43B for several examples. [Table 3] The cutting edge angles α of Examples 2 and 13 were 60° and 15°, respectively, and the LP values ​​were good. The cutting edge angle α of Example 14 was 80°, resulting in an LP value slightly inferior to Examples 2 and 13. The cutting edge angle α of Example 15 was 90°, resulting in an LP value even inferior to Example 14. Examples 16 and 17 are examples in which the cutting edge angle α is 60° but the mounting angle β is different. Example 18, in which the angle α + β exceeded 90°, resulted in an inferior result to Examples 16 and 17, in which the angle α + β was 90° or less.

[0081] Next, the effects provided by the roll paper holder 20 and portable toilet 1 according to this embodiment will be described.

[0082] As described above, the roll paper holder 20 according to this embodiment comprises a paper support member 30 and a paper pressing member 40. The paper support member 30 has a support rod 31 into which the roll core 101 of the toilet paper 100 is inserted, and a first sliding portion 32A provided at one end of the support rod 31. The paper pressing member 40 has a first support post 41 that engages with the first sliding portion 32A so that it can slide up and down, and a pressing bar 43 that extends horizontally from the first support post 41 and is positioned above the support rod 31. The roll paper holder 20 is configured so that the toilet paper 100 is sandwiched between the pressing bar 43 and the support rod 31.

[0083] According to the roll paper holder 20 of this embodiment, regardless of the amount of toilet paper 100 remaining, the user can easily pull out and separate the paper 102 with one hand. Furthermore, according to the roll paper holder 20 of this embodiment, the paper holder member 40 is slidably engaged with the paper support member 30. By removing the paper holder member 40 from the paper support member 30, inserting the toilet paper 100 into the paper support member 30, and then attaching the paper holder member 40 to the paper support member 30, the toilet paper 100 can be easily replaced with one hand. Furthermore, according to this embodiment, there is no need for a member that slidably supports the paper holder member 40 and supports the paper support member 30. According to this embodiment, such a member can be omitted, making it possible to make the configuration more compact and simpler than conventional configurations. Furthermore, in the roll paper holder 20 according to this embodiment, the first sliding portion 32A, with which the first support post 41 of the paper pressing member 40 slidably engages, is provided at one end of the support rod 31, and the first sliding portion 32A is provided near the support rod 31. This allows for further miniaturization and simplification of the configuration.

[0084] According to this embodiment, when viewed from the axial direction of the support rod 31 (i.e., the X direction), the horizontal distance between the cutting edge of the cutting blade 43B and the axis 31c of the support rod 31 is 30 mm or less. Because the horizontal distance between the cutting edge of the cutting blade 43B and the axis 31c of the support rod 31 is relatively short, the cutting edge of the cutting blade 43B is located near the top of the toilet paper 100. This makes it easy for the user to pull the paper 102 horizontally out of the toilet paper 100, and also allows the paper 102 to be easily cut off by the cutting blade 43B.

[0085] According to this embodiment, the pressure bar 43 is configured to press down on the toilet paper 100 supported by the support bar 31 with a load of 30 gf or more. This allows the toilet paper 100 to be well held down by the pressure bar 43, and the toilet paper 100 to be well sandwiched between the pressure bar 43 and the support bar 31. Therefore, the user can easily pull out the paper 102 with one hand and easily separate it.

[0086] In order for the paper pressing member 40 to hold down the toilet paper 100, a member such as a spring or magnet may be added as a member that biases the paper pressing member 40 toward the toilet paper 100. For example, the pressure bar 43 may be provided with a spring or magnet that applies a downward force. However, according to this embodiment, the mass of the paper pressing member 40 is set to 30 g or more, and the toilet paper 100 is clamped between the pressure bar 43 and the support bar 31 by the weight of the paper pressing member 40 itself. Therefore, members such as a spring or magnet are not required. According to this embodiment, the toilet paper 100 can be clamped and held well with an inexpensive and simple configuration.

[0087] Note that the second support rod 42 and the second sliding portion 32B do not have to be provided as long as the toilet paper 100 can be clamped between the pressure rod 43 and the support rod 31 and the paper presser member 40 can slide up and down. However, as in this embodiment, when the paper support member 30 has the second sliding portion 32B, the paper presser member 40 has the second support rod 42, and the pressure rod 43 spans between the first support rod 41 and the second support rod 42, the toilet paper 100 can be clamped more stably. This allows the paper 102 to be more easily pulled out and separated.

[0088] The configuration for attaching the roll paper holder 20 to the portable toilet 1 is not particularly limited, but in this embodiment, the paper support member 30 has a fixing part 33 that has a fitting part 33A with a C-shaped cross section and is provided on the first sliding part 32A. The roll paper holder 20 is attached to the portable toilet 1 by fitting the fitting part 33A into the armrest support 8. According to this embodiment, the roll paper holder 20 can be easily attached to the portable toilet 1.

[0089] According to this embodiment, a rubber or elastomer band 37 is wrapped around the fitting portion 33A. The portion of the band 37 on the inner circumferential surface of the fitting portion 33A functions as a rotation restriction portion that restricts the fitting portion 33A from rotating relative to the armrest support 8. According to this embodiment, when the user pulls out the paper roll 102 from the roll paper holder 20 or when they cut off the paper roll 102, the fitting portion 33A is restricted from rotating relative to the armrest support 8. This makes it easy to pull out and cut off the paper roll 102.

[0090] (Second embodiment) In the first embodiment, the paper support member 30 of the roll paper holder 20 is attached directly to the armrest support 8 of the portable toilet 1. The inner peripheral surface of the fitting portion 33A of the paper support member 30 is in contact with the outer peripheral surface of the armrest support 8. However, the attachment form of the paper support member 30 is not particularly limited. As shown in FIG. 15, in the second embodiment, a fixing adapter 50 is interposed between the fitting portion 33A of the paper support member 30 and the armrest support 8 of the portable toilet 1. Note that FIG. 15 only shows a portion of the armrest support 8. In the following explanation, the same components and parts as in the first embodiment are designated by the same reference numerals, and their explanation will be omitted.

[0091] 16 is a perspective view of the fixed adapter 50. The fixed adapter 50 is formed with a C-shaped cross section. The fixed adapter 50 has a body portion 53 with a C-shaped cross section like a cylinder with a portion cut out, a first flange portion 51 provided at one end of the body portion 53, and a second flange portion 52 provided at the other end of the body portion 53. Like the body portion 53, the first flange portion 51 and the second flange portion 52 are formed with a C-shaped cross section. The first flange portion 51 and the second flange portion 52 protrude radially outward beyond the body portion 53.

[0092] As shown in Figure 15, the fixing adapter 50 is attached to the armrest support 8. The fixing adapter 50 is made of synthetic resin and is flexible. There are no particular restrictions on the material of the fixing adapter 50, and it may be made of PP, PE, ABS, PVC (polyvinyl chloride) resin, etc. The fixing adapter 50 can be easily fitted into the armrest support 8 by pressing the opening of the fixing adapter 50, which has a C-shaped cross section, against the armrest support 8.

[0093] In this embodiment, the fitting portion 33A of the paper support member 30 is attached to the fixed adapter 50. The fitting portion 33A can be fitted into the fixed adapter 50 by pressing the opening of the fitting portion 33A, which has a C-shaped cross section, against the fixed adapter 50. The fitting portion 33A is indirectly attached to the armrest support 8 via the fixed adapter 50. In this embodiment as well, the fitting portion 33A of the paper support member 30 can be easily fitted.

[0094] The outer diameter of the fixing adapter 50 is larger than the outer diameter of the armrest support 8. According to this embodiment, the roll paper holder 20 can be attached to a portable toilet 1 with a relatively thin armrest support 8. For portable toilets 1 with a relatively thick armrest support 8, the fitting portion 33A is directly fitted, while for portable toilets 1 with a relatively thin armrest support 8, the fitting portion 33A is indirectly fitted via the fixing adapter 50, thereby allowing the same roll paper holder 20 to be used for multiple types of portable toilets 1 with armrest support 8 of different thicknesses. According to this embodiment, the convenience of the roll paper holder 20 can be improved.

[0095] According to this embodiment, the fixing adapter 50 has at least one flange on its lower portion, which prevents the roll paper holder 20 from shifting downward. Here, the fixing adapter 50 has a first flange 51 and a second flange 52. The first flange 51 prevents the fitting portion 33A from moving upward, thereby preventing the roll paper holder 20 from shifting upward. The second flange 52 prevents the fitting portion 33A from moving downward, thereby preventing the roll paper holder 20 from shifting downward. However, the first flange 51 and the second flange 52 are not necessarily required, and either or both can be omitted.

[0096] The outer peripheral surface of the fixed adapter 50 may be smooth, or as shown in FIG. 17, the outer peripheral surface of the fixed adapter 50 may be provided with a protrusion 55. A recess 36 is provided on the inner peripheral surface of the fitting portion 33A (see FIGS. 4 and 6). The protrusion 55 of the fixed adapter 50 engages with the recess 36 of the fitting portion 33A, restricting rotation of the fitting portion 33A relative to the fixed adapter 50. In this embodiment, the band 37 wrapped around the fitting portion 33A, as well as the protrusion 55 and recess 36, form a rotation restriction that restricts rotation of the fitting portion 33A. This embodiment also prevents the roll paper holder 20 from rotating around the armrest support 8 when a user forcefully pulls the paper 102 from the roll paper holder 20.

[0097] In this embodiment, the fixed adapter 50 has a protrusion 55 on its outer peripheral surface, and the fitting portion 33A has a recess 36 formed on its inner peripheral surface to engage with the protrusion 55. However, recesses may be formed on the fixed adapter 50, and protrusions may be formed on the inner peripheral surface of the fitting portion 33A to engage with the recesses. Furthermore, the protrusions 55 of the fixed adapter 50 and the recesses 36 of the fitting portion 33A are not necessarily required. The rotation restricting portion may be formed only by the band 37. Furthermore, the band 37 may be omitted, and the rotation restricting portion may be formed only by the protrusions 55 and the recesses 36.

[0098] (Third embodiment) In the first and second embodiments, the paper support member 30 of the roll paper holder 20 has a fixing portion 33 having an inset portion 33A. The roll paper holder 20 is attached to the portable toilet 1 by directly or indirectly fitting the inset portion 33A into the armrest support 8 of the portable toilet 1. However, the manner in which the roll paper holder 20 is attached to the portable toilet 1 is not particularly limited. The roll paper holder 20 can be attached to any support provided on the portable toilet 1.

[0099] Furthermore, holes 30a are formed on one end and the other end of the support rod 31 of the paper support member 30 (see FIG. 3). The roll paper holder 20 may be attached to the portable toilet 1 by hooking these holes 30a onto a part of the portable toilet 1 or onto a member attached to the portable toilet 1. For example, as shown in FIG. 18, a hook 65 may be hooked onto a horizontally extending member of the portable toilet 1 (for example, the rod 8A below the armrest 7 (see FIG. 1)), and the hook 65 may then be hooked into the hole 30a of the paper support member 30. In this way, the hook 65 can be used to attach the roll paper holder 20 to the portable toilet 1. Alternatively, the roll paper holder 20 may be attached to a nursing bed frame, handrail, chair frame, shelf, etc.

[0100] (Fourth embodiment) In the first to third embodiments, the roll paper holder 20 is attached to the portable toilet 1. However, the roll paper holder 20 does not necessarily have to be attached to the portable toilet 1.

[0101] For example, the roll paper holder 20 may be attached to the wall of a room such as a toilet. The roll paper holder 20 may be a wall-mounted type. For example, as shown in FIG. 19 , a fixing plate 61 provided with a support 62 may be fixed to the wall with screws 63, magnets, or the like, and the fitting portion 33A of the roll paper holder 20 may be fitted into the support 62. Even in this configuration, the user can easily pull out the paper 102 from the toilet paper 100 with one hand, regardless of the amount of toilet paper 100 remaining, and can easily separate it with one hand.

[0102] (Fifth embodiment) The roll paper holder 20 may be a stationary type that can be placed on a desk or floor. For example, as shown in FIG. 20, the paper support member 30 of the roll paper holder 20 may include a support rod 31, a first sliding portion 32A, a second sliding portion 32B, an arm 38 extending downward from the first sliding portion 31B, and a base 39 connected to the lower end of the arm 38. By placing the base 39 on a desk or floor, the roll paper holder 20 can be used on a desk or floor. Even in this configuration, the user can easily pull out and separate the paper 102 from the toilet paper 100 with one hand, regardless of the amount of toilet paper 100 remaining.

[0103] (Other embodiments) When the paper roll holder 20 is installed with the support rod 31 extending horizontally, any vertically extending support rod can be fitted into the fitting portion 33A. In addition to the first sliding portion 32A and the second sliding portion 32B, the paper support member 30 may also have one or more other sliding portions. In addition to the first sliding portion 41 and the second sliding portion 42, the paper pressing member 40 may also have one or more other supporting portions that are slidably inserted into the sliding portions of the paper support member 20.

[0104] In the above embodiment, the paper support member 30 has a first sliding portion 32A and a second sliding portion 32B, and the paper pressing member 40 has a first support post 41 and a second support post 42, but either the first sliding portion 32A or the second sliding portion 32B may be omitted, and either the first support post 41 or the second support post 42 may be omitted. For example, as shown in Figure 21, the paper pressing member 40 may have only the first support post 41 as a support post, and may not have the second support post 42. The paper roll holder 20 may also be a single-post type.

[0105] As shown in FIG. 6, in the above embodiment, the paper pressure member 40 is attached to the paper support member 30 so that the cutting blade 43B faces in the Y2 direction. However, the paper pressure member 40 can be attached to the paper support member 30 upside down. This allows the paper pressure member 40 to be positioned in a direction that is easier for the user to use. As shown in FIG. 22, the paper pressure member 40 may be attached to the paper support member 30 so that the cutting blade 43B faces in the Y1 direction. In this case, the first support post 41 of the paper pressure member 40 is inserted into the second sliding hole 35B, and the second support post 42 is inserted into the first sliding hole 35A. The second sliding hole 35B is configured so that the first support post 41 of the paper pressure member 40 can be inserted in a position rotated 180 degrees left or right from the position when inserted into the first sliding hole 35A.

[0106] As shown in Fig. 7, in the embodiment, the paper support member 30 has the arm portion 33B of the fixed portion 33 extending in the X2 direction and the Y1 direction from the first sliding portion 32A. However, the paper support member 30 can be fitted upside down to a support such as the armrest support 8. As shown in Fig. 23, the paper support member 30 may be arranged so that the arm portion 33B extends in the X2 direction and the Y2 direction from the first sliding portion 32A.

[0107] As shown in Fig. 16, a locking claw 56 may be provided on the edge of the body 53 of the fixation adapter 50. As shown in Fig. 24(a), a recess 8d into which the locking claw 56 can be locked may be formed in the support post 8 into which the fixation adapter 50 is fitted. As shown in Fig. 24(b), when the fixation adapter 50 is fitted into the support post 8, the locking claw 56 locks into the recess 8d, preventing the fixation adapter 50 from sliding downward. Furthermore, by fitting the locking claw 56 into the recess 8d, the vertical position of the fixation adapter 50 relative to the support post 8 can be set to a predetermined position.

[0108] The configuration of the portable toilet 1 described above is merely an example. The configuration of the seat 3 is not particularly limited. Furthermore, one or more of the armrests 7, the backrest 6, and the lid 9 are not necessarily required. If the seat 3 is configured to be placed directly on the floor, the legs 4 may be omitted.

[0109] In the embodiment described above, the roll paper holder 20 is attached to the portable toilet 1, and the roll paper held by the roll paper holder 20 is toilet paper 100. However, the installation target of the roll paper holder 20 is not limited to the portable toilet 1, and the type of roll paper held by the roll paper holder 20 is not particularly limited. The roll paper held by the roll paper holder 20 may be, for example, kitchen paper. The roll paper holder 20 can be used for any roll paper made of any paper wound around it.

[0110] In the above embodiment, the roll paper holder 20 is used in an orientation where the Z direction is vertical, but the installation orientation of the roll paper holder 20 is not particularly limited. For example, the pressure bar 43 may be biased toward the support bar 31 by a spring or magnet, and the roll paper holder 20 may be installed in an orientation where the X direction is vertical. The load of the pressure bar 43 on the roll paper is preferably 30 gf or more.

[0111] In the above embodiment, the rotation restricting portion that restricts the rotation of the fitting portion 33A of the paper support member 30 has a rubber or elastomer band 37 wrapped around the fitting portion 33A, but dots or lines of rubber or elastomer may be provided on the inner circumferential surface of the fitting portion 33A instead of the band 37. The specific configuration of the rotation restricting portion is not particularly limited. [Explanation of symbols]

[0112] 1. Portable toilet 8 Armrest Support 20 Roll Paper Holder 30 Paper support member 31 Support rod 32A First sliding part 32B Second sliding part 33 Fixed part 33A Fitting 35A 1st sliding hole 35B 2nd sliding hole 40 holding member 41 1st pillar 42 Second pillar 43 Presser rod 43A Rod-shaped body 43B cutting blade 100 toilet paper 102 Paper

Claims

1. a paper support member having a support rod into which the roll paper is inserted and a first sliding portion provided at one end of the support rod; a paper pressing member having a first support post that is engaged with the first sliding portion so as to be slidable up and down, and a pressure bar that extends horizontally from the first support post, the pressure bar being disposed above the support bar; The roll paper holder is configured so that the roll paper is sandwiched between the pressure bar and the support bar.

2. A paper support member having a support rod into which a roll of paper is inserted and a first sliding portion provided at one end of the support rod; a paper pressing member having a first support pole that is engaged with the first sliding portion so as to be slidable up and down, and a pressing bar that extends horizontally from the first support pole; The roll paper is sandwiched between the pressure bar and the support bar, The pressure bar has a rod-shaped body extending horizontally and a cutting blade provided on a lower side of the rod-shaped body, A roll paper holder, wherein the horizontal distance between the cutting edge of the cutting blade and the axis of the support rod is 30 mm or less when viewed from the axial direction of the support rod.

3. 3. The roll paper holder according to claim 1, wherein the pressure bar is configured to press the roll paper supported by the support bar with a load of 30 gf or more.

4. The paper support member has a second sliding portion provided at the other end of the support rod, The paper pressing member has a second support pillar that is vertically slidably engaged with the second sliding portion, 4. The roll paper holder according to claim 1, wherein the pressure bar is bridged between the first support rod and the second support rod.

5. A paper support member having a support rod into which a roll of paper is inserted and a first sliding portion provided at one end of the support rod; a paper pressing member having a first support pole that is engaged with the first sliding portion so as to be slidable up and down, and a pressing bar that extends horizontally from the first support pole; The roll paper is sandwiched between the pressure bar and the support bar, The paper support member has a fitting portion with a C-shaped cross section that fits into the support post, and is equipped with a fixing portion provided on the first sliding portion, a roll paper holder.

6. A paper support member having a support rod into which a roll of paper is inserted and a first sliding portion provided at one end of the support rod; a paper pressing member having a first support pole that is engaged with the first sliding portion so as to be slidable up and down, and a pressing bar that extends horizontally from the first support pole; The roll paper is sandwiched between the pressure bar and the support bar, It is equipped with a C-shaped fixing adapter that fits into the support. the paper support member has a fitting portion having a C-shaped cross section that fits into the fixed adapter and includes a fixing portion provided on the first sliding portion; The roll paper holder is attached to the portable toilet by fitting the fixing adapter into a support pole provided on the portable toilet.

7. The roll paper holder according to claim 5, wherein the fitting portion is fitted into a support provided on the wall, thereby attaching the roll paper holder to the wall.

8. A paper support member having a support rod into which the roll paper is inserted and a first sliding portion provided at one end of the support rod; a paper pressing member having a first support pole that is engaged with the first sliding portion so as to be slidable up and down, and a pressing bar that extends horizontally from the first support pole; The roll paper is sandwiched between the pressure bar and the support bar, A stand and a support arm connected to the base and the first sliding portion, and supporting the support rod above the base; Equipped with a roll paper holder.

9. A paper support member having a support rod into which the roll paper is inserted and a first sliding portion provided at one end of the support rod; a paper pressing member having a first support pole that is engaged with the first sliding portion so as to be slidable up and down, and a pressing bar that extends horizontally from the first support pole; The roll paper is sandwiched between the pressure bar and the support bar, The paper support member has a second sliding portion provided at the other end of the support rod, The paper pressing member has a second support pillar that is vertically slidably engaged with the second sliding portion, The pressure bar is bridged between the first support column and the second support column, The first sliding portion and the second sliding portion are formed with locking portions to which hooks are locked, The roll paper holder is configured to be supported by being suspended by a hook engaged with the engaging portion of the first sliding portion and a hook engaged with the engaging portion of the second sliding portion.

10. A portable toilet equipped with the roll paper holder according to any one of claims 1 to 9.

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