Roll paper holder for portable toilets and portable toilets

Abstract

To provide a portable toilet that enables a user to replace easily by one hand and to draw and cut paper from toilet paper by a desired length.SOLUTION: A portable toilet 1 includes a bucket 10 as a toilet bowl, an armrest support 8, an armrest 7, and a roll paper holder 20 arranged in a side or front of the bucket 10 and holding toilet paper. The roll paper holder 20 includes a paper support member 30 that rotatably supports the toilet paper, and a paper pressing member 40 that engages slidably with the paper support member 30. The roll paper holder 20 is configured to sandwich the toilet paper with the paper pressing member 40 and the paper support member 30.SELECTED DRAWING: Figure 1

Description

Technical Field

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

Background Art

[0002] Conventionally, portable toilets have been used for applications such as the care of the elderly. In a portable toilet, it is convenient if the user can use toilet paper while sitting on the toilet seat. Therefore, a portable toilet equipped with a roll paper holder that holds toilet paper has been proposed.

[0003] For example, Patent Document 1 describes a portable toilet in which a roll paper holder is attached to a support column that supports an armrest. The roll paper holder described in Patent Document 1 is composed of a mounting portion attached to the support column and a rod-shaped paper roll support arm extending from the mounting portion. By inserting the paper roll support arm into the roll core of the toilet paper, the toilet paper can be attached to the roll paper holder. The toilet paper is rotatably supported by the paper roll support arm. The user can pull the paper with one hand to draw out the toilet paper from the toilet paper, and can further pull the paper while holding the toilet paper with the other hand to cut off the drawn paper.

Prior Art Documents

Patent Documents

[0006] The present invention has been made in view of the above, and its purpose is to provide a portable toilet roll paper holder and a portable toilet equipped therewith that make it easy for the user to tear off a desired length of paper from the toilet paper roll with one hand. [Means for solving the problem]

[0007] The roll paper holder according to the present invention is a roll paper holder for a portable toilet that is attached to a portable toilet and holds toilet paper. The roll paper holder for a portable toilet comprises a paper support member that rotatably supports the toilet paper, and a paper pressing member that slidably engages with the paper support member and presses down the toilet paper supported by the paper support member. The roll paper holder for a portable toilet is configured to sandwich the toilet paper between the paper pressing member and the paper support member.

[0008] According to the above-described portable toilet roll paper holder, the toilet paper is held in place by a paper press member and a paper support member. When the user pulls the paper, the paper press member and the paper support member resist the rotation of the toilet paper. Therefore, excessive rotation of the toilet paper is prevented. The user can easily pull out the desired length of paper from the toilet paper roll. Also, because the toilet paper is held in place by the paper press member and the paper support member, the user can pull out the paper with one hand, then fold the paper back towards the paper press member and pull to separate it. Thus, with the above-described portable toilet roll paper holder, it becomes easy to separate the desired length of paper from the toilet paper roll with one hand.

[0009] The portable toilet roll paper holder may be configured such that the paper pressing member presses down on the toilet paper supported by the paper support member with a load of 30 gf or more.

[0010] According to the above, the toilet paper can be securely held in place by the paper press member and the paper support member. Users can easily pull out and tear off the paper with one hand.

[0011] The paper-holding member may have a holding rod positioned above the paper-supporting member and a cutting blade provided below the holding rod, either integral to or separate from the holding rod. The portable toilet roll paper holder may be configured to hold the toilet paper between the holding rod and the paper-supporting member.

[0012] According to the above, the toilet paper can be securely held in place by the retaining rod and the paper support member.

[0013] The portable toilet may have a support column. The paper support member may have a C-shaped fitting portion in cross-section. The roll paper holder for the portable toilet may be supported by the armrest support column by the fitting portion being fitted into the support column.

[0014] As described above, by fitting the paper support member's mounting portion into the armrest support column, the roll paper holder for portable toilets can be easily attached to the portable toilet.

[0015] The paper support member may include a support rod inserted into the core of the toilet paper roll, a sliding portion provided at one end of the support rod, and a fixing portion provided at the sliding portion. The paper pressing member may include a support column that slidably engages with the sliding portion vertically, and a pressing rod extending from the support column and positioned above the support rod. The portable toilet roll paper holder may be configured to hold the toilet paper between the pressing rod and the support rod.

[0016] According to the above, the toilet paper can be held securely by the retaining rod and support rod. Therefore, the paper can be pulled out and torn more easily.

[0017] A locking portion may be formed on the sliding portion to which a hook is locked. The portable toilet roll paper holder may be suspended and supported by the hook locked to the locking portion of the sliding portion.

[0018] According to the above, a roll paper holder for portable toilets can be easily attached to a portable toilet using a hook.

[0019] The portable toilet according to the present invention is equipped with a roll paper holder for the portable toilet. [Effects of the Invention]

[0020] According to the present invention, it is possible to provide a roll paper holder for a portable toilet that allows a user to easily cut off paper from toilet paper to a desired length with one hand, and a portable toilet equipped with the same.

Brief Description of the Drawings

[0021] [Figure 1] It is a perspective view of a portable toilet according to the first embodiment. [Figure 2] It is a perspective view of the roll paper holder. [Figure 3] It is a front view of the roll paper holder. [Figure 4] It is a rear view of the roll paper holder. [Figure 5] It is a side view of the roll paper holder. [Figure 6] It is a plan view of the roll paper holder. [Figure 7] It is a bottom view of the roll paper holder. [Figure 8] It is a partial enlarged view of the cutting blade. [Figure 9] It is a diagram showing the tip shape of the blade of the cutting blade according to a modified example. [Figure 10] It is a diagram showing the blade tip angle of the cutting blade. [Figure 11] It is a diagram showing the mounting angle of the cutting blade. [Figure 12] It is a sectional view taken along line XII-XII of FIG. 3. [Figure 13] It is a schematic diagram showing the method of cutting toilet paper by the cutting blade. [Figure 14] It is a diagram showing the breaking length in the longitudinal direction of the cut-off paper. [Figure 15] It is a perspective view of a roll paper holder according to the second embodiment. [Figure 16] It is a perspective view of the fixed adapter. [Figure 17] It is a perspective view of the support column and the fixed adapter. [Figure 18]This is a perspective view of a roll paper holder according to the third embodiment. [Figure 19] This is a front view of a roll paper holder according to another embodiment. [Figure 20] This is a plan view of a roll paper holder according to another embodiment. [Figure 21] This is a bottom view of a roll paper holder according to another embodiment. [Figure 22] (a) is a perspective view of a support column according to another embodiment, and (b) is a perspective view showing a support column according to the other embodiment with a fixing adapter fitted into it. [Modes for carrying out the invention]

[0022] (First Embodiment) Embodiments of the present invention will be described below with reference to the drawings. Figure 1 is a perspective view of the portable toilet 1 according to this embodiment. In the following description of the portable toilet 1, unless otherwise specified, front, back, left, right, up, and down refer to the directions front, back, left, right, up, and down as seen from the perspective of a user sitting on the toilet seat 5, which will be described later.

[0023] <Portable toilet> The portable toilet 1 comprises 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.

[0024] The seat portion 3 is formed in a box shape with an opening at the top. The bucket 10 is attached to the inside of the seat portion 3 through the opening. The bucket 10 is configured to be detachably attached to the seat portion 3 from above and below. The bucket 10 is an example of a "toilet bowl". The legs 4 support the seat portion 3 and support the bucket 10 via the seat portion 3.

[0025] The toilet seat 5 is rotatably attached to the rear of the seat 3. The toilet seat 5 can rotate forward and backward. When the toilet seat 5 is rotated forward, it can be tilted horizontally. When the toilet seat 5 is tilted horizontally, it is positioned above the bucket 10, and the user can sit on the toilet seat 5. When the toilet seat 5 is rotated backward, it can be raised, opening the inside of the seat 3. By raising the toilet seat 5, the bucket 10 can be removed upward from the seat 3, and the bucket 10 can be attached to the seat 3 from above.

[0026] 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 by the lid 9. By rotating the lid 9 backward and folding it, the toilet seat 5 and bucket 10 are opened, and the user can sit on the toilet seat 5.

[0027] The armrest supports 8 are positioned to the sides of the bucket 10. More specifically, the left armrest support 8 is positioned to the left of the bucket 10, and the right armrest support 8 is positioned to the right of the bucket 10. In this embodiment, two armrest supports 8 are positioned front to back on both 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 front to back. The front armrest support 8 and the rear armrest support 8 are connected to each other via the rod 8A.

[0028] The armrest 7 is supported by front and rear armrest supports 8. The armrest 7 extends front to back. The armrest 7 is positioned to the side of the bucket 10. More specifically, the left armrest 7 is positioned to the left of the bucket 10, and the right armrest 7 is positioned to the right of the bucket 10. The armrest supports 8 may be configured to be raised and lowered so that the height of the armrest 7 can be adjusted.

[0029] <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 also be attached to the left front armrest support 8, but here it is attached to the right front armrest support 8.

[0030] Figure 2 is a perspective view of the roll paper holder 20. Figures 3, 4, 5, 6, and 7 are the front view, rear view, left side view, top view, and bottom view of the roll paper holder 20, respectively. Next, the details of the roll paper holder 20 will be explained with reference to Figures 2 to 7.

[0031] As shown in Figure 2, the roll paper holder 20 comprises a paper support member 30 and a paper pressing member 40. As shown in Figure 3, the roll paper holder 20 is configured to hold the toilet paper 100 between the paper support member 30 and the paper pressing member 40. In Figure 3, reference numeral 101 represents the roll core of the toilet paper 100, and reference numeral 102 represents the paper 102 wound around the roll core 101. The toilet paper 100 is made up of paper 102 wound around the roll core 101.

[0032] First, the paper support member 30 will be described. The paper support member 30 rotatably supports the toilet paper 100. As shown in Figure 2, the paper support member 30 comprises 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 fixing portion 33 provided on the first sliding portion 32A. The second sliding portion 32B has a convex shape relative to the support rod 31, preventing lateral displacement of the toilet paper 100. At the other end of the support rod 31, a wall portion 31W is provided that extends radially outward from the upper end of the other end of the support rod 31 (in this case, laterally, but may also be upward), and restricts the lateral movement of the toilet paper 100. In this embodiment, the paper support member 30 is a single component. The support rod 31, the first sliding part 32A, the second sliding part 32B, and the fixing part 33 are integrally formed. However, the paper support member 30 is not particularly limited and may be composed of multiple members. At least one of the support rod 31, the first sliding part 32A, the second sliding part 32B, and the fixing part 33 may be formed separately from at least one of the others and assembled together. The paper support member 30 can be made of, for example, synthetic resin. The paper support member 30 can be made of, for example, PP (polypropylene), PE (polyethylene), ABS, PVC (polyvinyl chloride) resin, etc.

[0033] The support rod 31 extends straight. The support rod 31 is inserted into the roll core 101 of the toilet paper 100 (see Figure 3). The support rod 31 is configured to support the toilet paper 100. In this 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, elliptical, polygonal, etc. The support rod 31 may be solid or hollow.

[0034] A first sliding hole 35A is formed in the first sliding part 32A, and a second sliding hole 35B is formed in the second sliding part 32B. The first sliding hole 35A and the second sliding hole 35B extend in a direction perpendicular to the direction in which the support rod 31 extends. Hereinafter, the direction in which the support rod 31 extends will be referred to as the X direction, and the direction in which the first sliding hole 35A and the second sliding hole 35B extend 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 Figure 6). Also, 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 direction.

[0035] The cross-sectional shapes of the first sliding hole 35A and the second sliding hole 35B are formed as ellipses, where the dimension in the X direction is smaller than the dimension in the Y direction. However, the shapes of the first sliding hole 35A and the second sliding hole 35B are not particularly limited and include, for example, circular, oblong (including ellipse, track shape, etc.), polygon (e.g., quadrilateral, hexagon, etc.), convex, and concave shapes with a portion of the circumference cut out. In this embodiment, the shapes and dimensions of the first sliding hole 35A and the second sliding hole 35B are equal to each other. However, the shapes and dimensions of either or both of the first sliding hole 35A and the second sliding hole 35B are not particularly limited and may differ from each other.

[0036] In this embodiment, the first sliding hole 35A and the second sliding hole 35B are holes with closed inner edges. The first sliding portion 32A and the second sliding portion 32B are formed to surround the entire circumference of the first support column 41 and the second support column 42, respectively, as 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 edge open. The first sliding portion 32A and the second sliding portion 32B may be formed in a shape in which a part is cut out to the side, or in a shape in which only the upper and lower portions surround the entire circumference.

[0037] In this embodiment, when the first sliding hole 35A and the second sliding hole 35B are not circular holes, the inner diameters of the first sliding hole 35A and the second sliding hole 35B refer to their respective hydraulic diameters. For example, when the opening area of ​​the first sliding hole 35A is A and its circumference is P, the inner diameter D of the first sliding hole 35A is D = (4A) / P. If the first sliding hole 35A consists of a hole with a part of its inner periphery open, it is not possible to strictly calculate the hydraulic diameter. Therefore, when the first sliding hole 35A consists of a hole with a part of its inner periphery open, the inner diameter of the first sliding hole 35A is calculated by assuming that one end and the other end of the inner periphery, which are spaced apart from each other, are connected by a straight edge. The inner diameter of the second sliding hole 35B is defined similarly. The inner diameters of the first sliding hole 35A and the second sliding hole 35B are not particularly limited, but are preferably 5 mm or more, and more preferably 15 mm or more. Furthermore, the inner diameters of the first sliding hole 35A and the second sliding hole 35B are preferably 40 mm or less, more preferably 30 mm or less, and even more preferably 25 mm or less.

[0038] The length of the first sliding hole 35A and the second sliding hole 35B in the Z direction is not particularly limited, but in this embodiment it is 20 mm. The ratio of the length in the Z direction to the inner diameter of the first sliding hole 35A and the second sliding hole 35B (here, the Z direction is the vertical direction, so height / inner diameter) is, for example, 10 / 20 or more, preferably 15 / 20 or more, and more preferably 20 / 20 or more. The above ratio is, for example, 100 / 20 or less, preferably 80 / 20 or less, and even more preferably 50 / 20 or less.

[0039] The upper surfaces of the first sliding portion 32A and the second sliding portion 32B (in this embodiment, the upper surface is a flat surface, so the upper end and upper surface of the first sliding portion 32A and the second sliding portion 32B are synonymous) are located at a height of 10 mm or less from the upper end of the support rod 31. Preferably, the upper surfaces of the first sliding portion 32A and the second sliding portion 32B are located at a height of 5 mm or less, more preferably 2 mm or less, from the upper end of the support rod 31.

[0040] The vertical length of the first sliding portion 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, but in this embodiment, the roll core 101 is inserted from the second sliding portion 32B. To facilitate the insertion of the roll core 101, the vertical length of the second sliding portion 32B is 40 mm or less, and more preferably 30 mm or less.

[0041] The fixing part 33 is the part that is fixed to the portable toilet 1. In this embodiment, the fixing part 33 is configured to be detachably attached to the armrest support column 8 of the portable toilet 1. As shown in Figure 6, the fixing part 33 has a C-shaped fitting part 33A and an arm part 33B that connects the fitting part 33A and the first sliding part 32A. However, the configuration of the fixing part 33 is not particularly limited. For example, the arm part 33B may be omitted, and the fitting part 33A may be directly connected to the first sliding part 32A.

[0042] In this specification, "C-shaped cross-section" refers to a cross-sectional shape that surrounds the center (see reference numeral 33c in Figure 6) over an angle θ greater than 180 degrees and less than 360 degrees. The C-shaped cross-section is not limited to a cross-sectional shape in which a part of the circumference of a perfect circle is cut out, but also includes cross-sectional shapes in which a part of the circumference of an oval (including ellipses, track shapes, etc.) or polygon (e.g., quadrilateral, hexagon, etc.) is cut out. The direction in which the C-shape opens can be set to any direction. For example, it may be in the axial direction of the support rod 31, or it may be in a direction tilted to the left or right from the axial direction of the support rod 31.

[0043] In this embodiment, the arm portion 33B is curved. However, the shape of the arm portion 33B is not particularly limited and may be bent or extend straight. The arm portion 33B may extend along a straight line L1 (see Figure 6) passing through the center of the first sliding hole 35A and the center of the second sliding hole 35B, but in this embodiment it extends from the first sliding portion 32A in the X2 direction and the Y1 direction.

[0044] As shown in Figure 6, the fitting portion 33A is located on the Y1 side of the straight line L1 connecting the center of the first sliding hole 35A and the center of the second sliding hole 35B, when viewed from the Z direction. In this embodiment, the cross-sectional shape of the fitting portion 33A is formed to resemble a circle with a portion of its circumference cut out. Multiple recesses 36 are formed on the inner circumference of the fitting portion 33A, arranged in the circumferential direction. Each recess 36 extends in the Z direction (see Figure 4). However, the recesses 36 are not necessarily required and can be omitted.

[0045] As shown in Figure 5, a rubber or elastomer band 37 is wrapped around the fitting portion 33A. The number of bands 37 is not particularly limited, but here two bands 37 are wrapped around the fitting portion 33A. As shown in Figure 6, one band 37 is wrapped around one half of the fitting portion 33A in the circumferential direction, and the other band 37 is wrapped around the other half of the fitting portion 33A in the circumferential direction. As shown in Figure 5, the bands 37 are wrapped 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 the "rotation restricting portion". A general type of band 37 can be used, but in this embodiment, a durometer type A hardness of 80 to 30 degrees compliant with JIS K 6253-3 is used. As rubber materials, silicone rubber, natural rubber, nitrile rubber, butyl rubber, etc. can be used. As elastomer materials, olefin-based elastomers, styrene-based elastomers, etc. can be used. In particular, silicone rubber is the most suitable in terms of its resistance to detergents and long-term stability of its rebound elasticity.

[0046] Next, the paper-holding member 40 will be described. As shown in Figure 2, the paper-holding member 40 has a first support column 41, a second support column 42, and a pressing rod 43. In this embodiment, the paper-holding member 40 is a single component, and the first support column 41, the second support column 42, and the pressing rod 43 are integrally formed. However, it is not particularly limited, and the paper-holding member 40 may be composed of multiple components. The paper-holding member 40 can be made of, for example, synthetic resin. The paper-holding member 40 can be made of, for example, PP (polypropylene), PE (polyethylene), ABS, PVC (polyvinyl chloride) resin, etc.

[0047] The first support column 41 and the second support column 42 are slidably inserted into the first sliding hole 35A and the second sliding 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 conforms to the shape of the first sliding hole 35A so that the first support column 41 can slide well in the first sliding hole 35A. Similarly, it is preferable that the cross-sectional shape of the second support column 42 conforms to the shape of the second sliding hole 35B so that the second support column 42 can slide well in the second sliding 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 sliding hole 35A and the second sliding hole 35B, respectively, and are formed as ellipses in which the dimension in the X direction is smaller than the dimension 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.

[0048] The clearance between the outer surface of the first support column 41 and the inner surface of the first sliding hole 35A, and the clearance between the outer surface of the second support column 42 and the inner surface of the second sliding 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 surface of the first support column 41 and the inner surface of the first sliding hole 35A is half the difference between the inner diameter of the first sliding hole 35A and the outer diameter of the first support column 41. The clearance between the outer surface of the second support column 42 and the inner surface of the second sliding hole 35B is half the difference between the inner diameter of the second sliding hole 35B and the outer diameter of the second support column 42.

[0049] The retaining rod 43 extends in the X direction from the first support column 41 and spans the upper end of the first support column 41 and the upper end of the second support column 42. The retaining rod 43 is positioned above the support rod 31 of the paper support member 30. The retaining rod 43 is configured to hold the toilet paper 100 between itself and the support rod 31 (see Figure 3). The retaining rod 43 has a rod-shaped body 43A extending in the X direction and a cutting blade 43B provided on the lower side of the rod-shaped body 43A.

[0050] The paper-holding member 40 is configured to hold down the toilet paper 100 by its own weight. In other words, the paper-holding member 40 is configured to hold down the toilet paper 100 between the holding rod 43 and the support rod 31 by its own weight. The mass of the paper-holding member 40 is not particularly limited, but in this embodiment it is 30g or more. The paper-holding member 40 is configured such that the holding rod 43 holds down the toilet paper 100 with a load of 30gf or more.

[0051] The cutting blade 43B is a blade used to cut the toilet paper 100. The shape of the cutting blade 43B is not particularly limited, but here, as shown in Figure 8, it has a plurality of blades 43Ba arranged in a comb-like shape. The width 43Bw and pitch 43Bp of the blades 43Ba of the cutting blade 43B are not particularly limited, but for example, 1 mm to 5 mm is preferred. In this embodiment, the width 43Bw and pitch 43Bp are 1.2 mm. The shape of the tip of the blade 43Ba is not particularly limited. As shown in Figure 8, the tip of the blade 43Ba may be formed in a straight shape. Also, as shown in Figure 9(a), the tip of the blade 43Ba may be formed in a concave shape. As shown in Figure 9(b), the tip of the blade 43Ba may be formed in a convex shape.

[0052] The shape of the cutting blade 43B described above is merely an example. The cutting blade 43B does not have to be formed in a comb-like shape. The cutting blade 43B may be formed, for example, by a single continuous blade extending in the X direction.

[0053] As shown in Figure 10, the blade 43Ba of the cutting blade 43B protrudes in the Y2 direction. Hereinafter, the tip of the 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 from the rod-shaped body 43A in the Y2 direction and extends horizontally from the rod-shaped body 43A. In this embodiment, the angle β of the direction in which the cutting blade 43B extends 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 Figure 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.

[0054] The position of the cutting edge of the cutting blade 43B in the Y direction is not particularly limited, but for example, it can be within 30 mm from the axis 31c of the support rod 31. Figure 12 is a cross-sectional view taken along line XII-XII in Figure 3, and is a cross-sectional view of the roll paper holder 20 at the intermediate position of the cutting blade 43B in the X direction. As shown in Figure 12, with respect to the position in the Y direction, the cutting edge 43Bt of the cutting blade 43B at the intermediate position in the X direction is at the same position as the axis 31c of the support rod 31. However, the position of the cutting edge 43Bt of the cutting blade 43B may be within 30 mm in the Y1 direction from the axis 31c of the support rod 31, or within 30 mm in the Y2 direction. That is, 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 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, even more preferably 5 mm or less, and particularly preferably 2 mm or less.

[0055] As shown in Figure 6, when viewed from the Z direction, the cutting blade 43B is curved so as to be concave in the Y1 direction. More specifically, in this embodiment, the cutting blade 43B is formed in a comb-like shape, and the tips of the multiple blades arranged in the X direction are aligned along a curved line that is 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 concave. For example, the cutting blade 43B may extend in a straight line when viewed from the Z direction, or it may be curved so as to be convex in the Y2 direction when viewed from the Z direction.

[0056] When no toilet paper 100 is inserted, the height difference between the upper end of the paper holder 40 and the lower end of the cutting blade 43B is 5 mm or less, preferably 3 mm or less.

[0057] The above describes the configuration of the roll paper holder 20. Next, we will explain how to use the roll paper holder 20.

[0058] <How to use a 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, the 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 pushed open by the armrest support 8, and the fitting portion 33A fits into the armrest support 8. In this way, the paper support member 30 is attached to the armrest support 8. After that, the first support 41 and the second support 42 are inserted from above into the first sliding hole 35A and the second sliding hole 35B, respectively, and the paper press member 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 Figure 1).

[0059] In the above installation example, the paper support member 30 was attached to the armrest support 8, and then the paper retainer member 40 was assembled to the paper support member 30. However, it is also possible to assemble the paper retainer member 40 to the paper support member 30 first, and then attach the paper support member 30 to the armrest support 8. In other words, it is possible to attach the paper support member 30 to the armrest support 8 while the paper retainer member 40 and the paper support member 30 are already assembled to each other.

[0060] When attaching toilet paper 100 to the roll paper holder 20, first, the paper retainer member 40 is removed from the paper support member 30. Since the first support column 41 and the second support column 42 are slidable relative to the first sliding hole 35A and the second sliding hole 35B, respectively, the user can pull out the first support column 41 and the second support column 42 from the first sliding hole 35A and the second sliding hole 35B simply by grasping and lifting the retaining rod 43. Therefore, the paper retainer member 40 can be easily removed from the paper support member 30. After removing the paper retainer member 40, the user inserts the roll core 101 of the toilet paper 100 from the second sliding part 32B toward the support rod 31. Then, after inserting the roll core 101 of the toilet paper 100 into the support rod 31, the paper retainer member 40 is attached to the paper support member 30. In other words, the user grasps the retaining rod 43 and inserts the first support column 41 into the first sliding hole 35A and the second support column 42 into the second sliding hole 35B. After inserting the first support column 41 and the second support column 42 into the first sliding hole 35A and the second sliding hole 35B, respectively, the user releases the retaining rod 43, and the toilet paper 100 is held between the paper retaining member 40 and the paper support member 30 by the weight of the paper retaining member 40. In this way, the toilet paper 100 can be attached to the roll paper holder 20.

[0061] The roll paper holder 20 is attached to the portable toilet 1 by fitting a C-shaped fitting portion 33A into the armrest support 8. The fitting portion 33A is held in place by the frictional force between the inner surface of the fitting portion 33A and the outer surface of the armrest support 8, and by the frictional force between the band 37 wrapped around the fitting portion 33A and the outer surface of the armrest support 8. Therefore, the 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 a predetermined value that exceeds these frictional forces, the fitting portion 33A can be rotated relative to the armrest support 8. Therefore, the user can change the position of the roll paper holder 20 to a desired position. The user can place the toilet paper 100 in a position where it is easy to take out the paper.

[0062] For example, as shown in Figure 1, the roll paper holder 20 can be installed on the right front armrest support 8 such that the cutting blade 43B faces to the right and rear. In other words, the roll paper holder 20 attached to the right front armrest support 8 can be installed in a position where the Y2 direction (see Figure 6) is to the right and rear. In this case, a user sitting on the toilet seat 5 of the portable toilet 1 can pull out the toilet paper 102 from the roll paper holder 20 simply by grasping the paper 102 of the toilet paper 100 with their right hand and pulling it to the right and rear. The toilet paper 100 is pressed downward by the weight of the paper holding member 40 and is held in place by the paper holding member 40 and the paper support member 30. Therefore, the user does not need to hold down the toilet paper 100 with their left hand and can easily pull out the toilet paper 100 with just their right hand.

[0063] Furthermore, the right and rear of the roll paper holder 20 is 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. The user can easily pull out the paper 102 from the roll paper holder 20. Also, because there is no plate-like component surrounding the toilet paper 100, the user can pull out the paper 102 even by grasping and rotating the toilet paper 100 itself.

[0064] By the way, if the tip position of the paper 102 and the position of the cutting blade 43B coincide, it is difficult to grasp the tip of the paper 102. However, according to this embodiment, the toilet paper 100 can be easily rotated in the opposite direction to the cutting blade 43B, and by rotating it in the opposite direction, the tip of the paper 102 will hang down. Therefore, it is easy to grasp the tip of the paper 102. According to this embodiment, if the tip position of the paper 102 and the position of the cutting blade 43B coincide, the toilet paper 100 can be rotated in the opposite direction to easily pull out the paper 102.

[0065] The user pulls out a desired length of paper 102 from the roll paper holder 20, and then cuts the paper 102 using the cutting blade 43B. Specifically, the user moves their right hand, which is grasping the paper 102, over the top of the retaining bar 43 to the left and backward, pulls out the desired length of paper, and then pulls it to the right and forward. As a result, the paper 102 folds back at the part in contact with the cutting blade 43B and is cut by the cutting blade 43B. As schematically shown in Figure 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 in the Y1 direction at the part in contact with the cutting blade 43B, but the cutting point 102a of the paper 102 tends to make point contact with the cutting blade 43B. Thus, compared to when the cutting point 102a makes line contact with the cutting blade 43B, the paper 102 is cut with a locally larger force. Therefore, users can cut the paper 102 well with relatively little force.

[0066] Furthermore, the left and front sides of the roll paper holder 20 are open, and there are no obstructions to the left and front of the roll paper holder 20. Therefore, when a user folds and cuts the paper 102, their right hand, which is holding the paper 102, will not come into contact with any obstructions. Thus, the user can 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 roll paper holder 20. Also, because there is no plate member surrounding the toilet paper 100, the user can grasp the toilet paper 100 itself and rotate it to pull out the paper 102. Furthermore, even if the toilet paper 100 is rotated in the opposite direction to the cutting blade 43B, the paper 102 can still be pulled out.

[0067] Incidentally, as the toilet paper 100 is used, the amount of toilet paper 100 held in the roll paper holder 20 decreases. That is, the diameter of the toilet paper 100 wound on 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 hold the toilet paper 100 between a retaining rod 43 and a support rod 31. Also, since the first sliding part 32A and the second sliding part 32B guide the first support column 41 and the second support column 42 downwards, the retaining rod 43 moves straight downwards as the toilet paper 100 is used. Even if the amount of toilet paper 100 decreases, the position and angle of the retaining rod 43 in the Y direction relative to the toilet paper 100 do not change much. Therefore, the toilet paper 100 can be held in place well by the retaining rod 43 regardless of the amount of toilet paper 100 remaining. Furthermore, regardless of the remaining amount of toilet paper 100, the cutting blade 43B can cut the toilet paper 100 cleanly.

[0068] <Toilet paper cutting and pulling tests> The inventors of this application conducted a cutting test and a pulling test of toilet paper 100 using the roll paper holder 20 according to the above embodiment. Next, the tests will be described.

[0069] The test used 100 rolls of toilet paper with perforations spaced 22 cm apart, manufactured by Oji Nepia Co., Ltd., under the product name "nepia Nepi Nepi Unscented [Double / 25m / Unscented]". The tear-off test procedure was as follows (steps 1-3). Operation 1: Cut the toilet paper 100 along the perforations and align the ends. Next, pull out the leading end of the paper 102 15 cm horizontally (Y2 direction in Figure 6), then stand the paper 102 upright in the vertical direction (Z direction) while pressing it against the cutting blade 43B. Operation 2: While ensuring that the paper 102 pulled from the toilet paper 100 does not become loose, pinch one end of the tip of the paper 102 (the end in the shorter direction of the paper 102, which is the end on the X2 direction side in Figure 6). Operation 3: Quickly pull the paper 102 toward the opposite end from the pinched end (the other end in the shorter direction of the paper 102) (X1 direction). Be careful not to use any recoil.

[0070] The procedure for the toilet paper 100 pull-out test is as follows: First, cut the paper 102 at the perforation and align the ends. Next, pinch the end of the paper 102 with the index finger and thumb of one hand and pull it out 60 cm forcefully in the horizontal direction (direction Y2 in Figure 6). Then, evaluate the flex and resistance of the paper 102 at that time, and a higher score based on the following criteria was judged to be better. The paper was pulled out more than necessary and became warped: 1 point The paper was pulled out to a reasonable extent, but the pulling motion was stiff: 2 points The paper is dispensed at a suitable rate, and the dispensing action is light: 3 points

[0071] The specifications for each component are as follows: (1) Paper support member The paper support member 30 was integrally injection-molded using polypropylene resin. The support rod 31 has a diameter of 20 mm and a length of 125 mm. The diameters of the first sliding hole 35A and the second sliding hole 35B were set to 20 mm plus twice the clearance (mm) shown in Tables 1 and 2 below. The paper support member 30 was integrally molded by injection molding. Polypropylene was used as the material. (2) Paper holding member The retaining rod 43 was injection-molded in one piece using polypropylene resin. The retaining rod 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 a cutting blade 43B was formed extending 60 mm from the center to the left and right. The cutting blade 43B was a comb-shaped blade with a width of 1.2 mm and a pitch of 1.2 mm. The mounting angle and cutting edge angle of the cutting blade 43B are as shown in Table 2. Polypropylene resin pipes (outer diameter 20 mm, inner diameter 16.2 mm) were connected to the lower surfaces of both ends of the retaining rod 43 to form the first support column 41 and the second support column 42. (3) Mass of the paper press member For the paper press member 40 with a mass of 20g, a polypropylene resin pipe (first support column 41 and second support column 42) with a length of 60mm was used. For the paper press member 40 with a mass of 30g, a polypropylene resin pipe with a length of 100mm was used. If the mass was 50g or more, the mass was adjusted by placing a plate-shaped weight on top of the plate-shaped press rod 43.

[0072] After performing operations 1 to 3 using the roll paper holder 20 of each embodiment, the longitudinal break length LP (see Figure 14) of the paper 102 separated from the toilet paper 100 was measured. Note that if the break portion 102d of the paper 102 is cut in a straight line in the short direction, the break length LP is 0. The shorter the break length LP, the better the paper 102 is considered to have been separated. Operations 1 to 3 were performed three times for each embodiment, and three measurements were taken. The average value of the three measurements was calculated as the break length LP for each embodiment.

[0073] In the roll paper holder 20 according to the above embodiment, the clearance between the first support column 41 and the inner surface of the first sliding hole 35A is equal to the clearance between the second support column 42 and the inner surface of the second sliding hole 35B. In Tables 1 and 2 below, these clearances are referred to as "clearance between the support column and the sliding hole". Also, the inner diameter / height values ​​are equal for the first sliding hole 35A and the second sliding hole 35B. In Tables 1 and 2, these are referred to as "inner diameter / height of the sliding hole".

[0074] [Table 1] In Examples 1-4, the mass of the paper-holding member 40 differed, while other conditions were the same. As can be seen from Table 1, in Examples 1-4, the value of the breaking length LP (hereinafter simply referred to as the LP value) increased as the mass decreased. In the case of a mass of 30g, the result was slightly worse than in the case of 50g, and even worse at 20g. In Example 5, by making the clearance smaller than in Example 3, the LP value was excellent even at 30g. Furthermore, in Example 4, because the mass of the holding member was too low, the force holding the paper was weak, and the paper was pulled out more than necessary.

[0075] [Table 2] In Example 6, where the ratio of the inner diameter to height of the sliding hole exceeded 2, the paper tore lengthwise and could not be cut. In Examples 7 and 8, the ratio of the inner diameter to 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 decreased. However, in Example 9, where the ratio of the inner diameter to height of the sliding hole exceeded 2, the paper tore and could not be cut. On the other hand, in Examples 10 to 12, the paper could be cut when the ratio of the inner diameter to height of the sliding hole was 2 or less, and the LP value improved as the ratio of the inner diameter to height of the sliding hole decreased. Furthermore, in Examples 9 to 12, the results of the paper pulling test were slightly inferior due to the large mass of the paper holding member 40.

[0076] Table 3 below summarizes data on the cutting edge angle α and mounting angle β of the cutting blade 43B for several embodiments. [Table 3] In Examples 2 and 13, the cutting edge angle α was 60° and 15°, respectively, and the LP value was good. In Example 14, the cutting edge angle α was 80°, and the LP value was slightly worse than in Examples 2 and 13. In Example 15, the cutting edge angle α was 90°, and the LP value was even worse than in Example 14. Examples 16 and 17 all had a common cutting edge angle α of 60°, but differed in their mounting angles β. In Example 18, where the angle α+β exceeded 90°, the results were worse than in Examples 16 and 17, where the angle α+β was 90° or less.

[0077] Next, the effects provided by the roll paper holder 20 and portable toilet 1 according to this embodiment will be described.

[0078] According to this embodiment of the portable toilet 1, the toilet comprises a bucket 10, a backrest 6 positioned behind the bucket 10, an armrest support 8 positioned to the side of the bucket 10, an armrest 7 supported by the armrest support 8, and a roll paper holder 20 positioned to the side or in front of the bucket 10. The roll paper holder 20 comprises a paper support member 30 that rotatably supports toilet paper 100, and a paper pressing member 40 that presses down on the toilet paper 100 supported by the paper support member 30. The paper pressing member 40 is slidably engaged with the paper support member 30, and the roll paper holder 20 is configured to hold the toilet paper 100 between the paper pressing member 40 and the paper support member 30.

[0079] When a user pulls the paper 102, the paper press member 40 and the paper support member 30 act as resistance to the rotation of the toilet paper 100. This prevents the toilet paper 100 from rotating too much. The user can easily pull out the desired length of paper 102 from the roll paper holder 20. Also, since the toilet paper 100 is held between the paper press member 40 and the paper support member 30, the user can pull out the paper 102 with one hand, then fold the paper 102 back towards the paper press member 40 and pull to separate it. The user can easily separate the paper 102 from the toilet paper 100 with one hand. According to the portable toilet 1 of this embodiment, the user can easily use the toilet paper 100.

[0080] According to this embodiment, the toilet paper 100 supported by the paper support member 30 is held down by the paper pressing member 40 with a load of 30 gf or more. As a result, the toilet paper 100 can be held down well by the paper pressing member 40, and the toilet paper 100 can be held securely between the paper pressing member 40 and the paper support member 30. Therefore, the user can easily pull out the paper 102 with one hand and easily tear it off.

[0081] In order to hold the toilet paper 100 with the paper-holding member 40, a member such as a spring or a magnet may be added to bias the paper-holding member 40 toward the toilet paper 100. For example, a spring or magnet that applies a downward force to the paper-holding member 40 may be provided. However, according to this embodiment, the mass of the paper-holding member 40 is set to 30g or more, and the toilet paper 100 is held in place by the paper-holding member 40 and the paper-supporting member 30 due to the weight of the paper-holding member 40 itself. Therefore, a member such as a spring or a magnet is unnecessary. According to this embodiment, the toilet paper 100 can be held and secured well with an inexpensive and simple configuration.

[0082] According to this embodiment, the paper holding member 40 has a holding rod 43 positioned above the paper support member 30, and is configured to sandwich the toilet paper 100 between the holding rod 43 and the paper support member 30. This allows the toilet paper 100 to be held securely.

[0083] According to this embodiment, the paper support member 30 has a support rod 31 that is inserted into the roll core 101 of the toilet paper 100. This allows the toilet paper 100 to be held between the paper pressing member 40 and the support rod 31. The toilet paper 100 can be held securely.

[0084] According to this embodiment, the roll paper holder 20 is supported by the armrest support 8 by fitting the fitting portion 33A of the paper support member 30 into the armrest support 8. The roll paper holder 20 can be easily attached to the portable toilet 1. Furthermore, the roll paper holder 20 can be easily installed in a position that is easy for a user to use while sitting on the toilet seat 5.

[0085] According to this embodiment, a rubber or elastomer band 37 is wrapped around the fitting portion 33A. The portion of the band 37 provided on the inner circumferential surface of the fitting portion 33A functions as a rotation restricting 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 102 from the roll paper holder 20 and when detaching the paper 102, it is possible to restrict the fitting portion 33A from rotating relative to the armrest support 8. Therefore, pulling out and detaching the paper 102 becomes easier.

[0086] According to this embodiment, the paper support member 30 has a support rod 31 inserted into the roll core 101 of the toilet paper 100, a first sliding portion 32A formed at one end of the support rod 31, and a second sliding portion 32B formed at the other end of the support rod 31. The paper pressing member 40 has a first support column 41 that is slidably engaged vertically with the first sliding portion 32A, a second support column 42 that is slidably engaged vertically with the second sliding portion 32B, and a pressing rod 43 that spans between the first support column 41 and the second support column 42. The pressing rod 43 is positioned above the support rod 31, and the roll paper holder 20 is configured to hold the toilet paper 100 between the pressing rod 43 and the support rod 31. With this configuration, the roll paper holder 20 can easily pull out and tear off the toilet paper 102 with one hand, regardless of the remaining amount of toilet paper 100.

[0087] (Second Embodiment) In the first embodiment, the paper support member 30 of the roll paper holder 20 is directly attached to the armrest support column 8 of the portable toilet 1. The inner circumferential surface of the fitting portion 33A of the paper support member 30 is in contact with the outer circumferential surface of the armrest support column 8. However, the mounting configuration of the paper support member 30 is not particularly limited. As shown in Figure 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 column 8 of the portable toilet 1. Note that only a part of the armrest support column 8 is shown in Figure 15. In the following description, the same reference numerals are used for members and parts as in the first embodiment, and their descriptions are omitted.

[0088] Figure 16 is a perspective view of the fixed adapter 50. The fixed adapter 50 is formed in a C-shape in cross-section. The fixed adapter 50 has a C-shaped body portion 53, which is formed by cutting out a part of a cylinder, 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. Similar to the body portion 53, the first flange portion 51 and the second flange portion 52 are formed in a C-shape in cross-section. The first flange portion 51 and the second flange portion 52 protrude radially outward from the body portion 53.

[0089] 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. The material of the fixing adapter 50 is not particularly limited and may be, for example, PP, PE, ABS, PVC (polyvinyl chloride) resin, etc. By pressing the opening of the C-shaped cross-section fixing adapter 50 against the armrest support 8, the fixing adapter 50 can be easily fitted onto the armrest support 8.

[0090] In this embodiment, the fitting portion 33A of the paper support member 30 is attached to the fixing adapter 50. The fitting portion 33A can be fitted into the fixing adapter 50 by pressing the opening of the C-shaped fitting portion 33A against the fixing adapter 50. The fitting portion 33A is indirectly attached to the armrest support column 8 via the fixing adapter 50. In this embodiment as well, the fitting portion 33A of the paper support member 30 can be easily fitted into place.

[0091] 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 a portable toilet 1 equipped with a relatively thick armrest support 8, the fitting part 33A can be directly fitted, while for a portable toilet 1 equipped with a relatively thin armrest support 8, the fitting part 33A can be indirectly fitted via the fixing adapter 50. This allows the same roll paper holder 20 to be used for multiple types of portable toilets 1 with different armrest support 8 thicknesses. According to this embodiment, the convenience of the roll paper holder 20 can be improved.

[0092] According to this embodiment, the fixing adapter 50 has at least one flange on its lower part to prevent the roll paper holder 20 from shifting downward. Here, the fixing adapter 50 has a first flange portion 51 and a second flange portion 52. The first flange portion 51 can prevent the fitting portion 33A from moving upward, thereby preventing the roll paper holder 20 from shifting upward. The second flange portion 52 can prevent the fitting portion 33A from moving downward, thereby preventing the roll paper holder 20 from shifting downward. However, the first flange portion 51 and the second flange portion 52 are not necessarily required, and either one or both can be omitted.

[0093] The outer circumferential surface of the fixing adapter 50 may be a smooth surface, but as shown in Figure 17, a protrusion 55 may be provided on the outer circumferential surface of the fixing adapter 50. A recess 36 is provided on the inner circumferential surface of the fitting portion 33A (see Figures 4 and 6). The protrusion 55 of the fixing adapter 50 and the recess 36 of the fitting portion 33A engage with each other, thereby restricting the rotation of the fitting portion 33A relative to the fixing adapter 50. In this embodiment, in addition to the band 37 wrapped around the fitting portion 33A, the above-mentioned protrusion 55 and recess 36 constitute a rotation restricting portion that restricts the rotation of the fitting portion 33A. In this embodiment as well, it is possible to prevent the roll paper holder 20 from rotating around the armrest support 8 when the user pulls the paper 102 from the roll paper holder 20 forcefully.

[0094] In this embodiment, a protrusion 55 is provided on the outer circumferential surface of the fixed adapter 50, and a recess 36 that engages with the protrusion 55 is formed on the inner circumferential surface of the fitting portion 33A. However, a recess may be formed on the outer circumferential surface of the fixed adapter 50, and a protrusion that engages with the recess may be formed on the inner circumferential surface of the fitting portion 33A. Furthermore, the protrusion 55 of the fixed adapter 50 and the recess 36 of the fitting portion 33A are not necessarily required. The rotation restricting portion may consist only of the band 37. Alternatively, the band 37 may be omitted, and the rotation restricting portion may consist only of the protrusion 55 and the recess 36.

[0095] (Third embodiment) In the first and second embodiments, the paper support member 30 of the roll paper holder 20 is equipped with a fixing portion 33 having a fitting portion 33A. The roll paper holder 20 is attached to the portable toilet 1 by directly or indirectly fitting the fitting portion 33A onto the armrest support column 8 of the portable toilet 1. However, the form 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 column provided on the portable toilet 1.

[0096] Furthermore, holes 30a are formed at one end and the other end of the support rod 31 of the paper support member 30 (see Figure 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 a member attached to the portable toilet 1. For example, as shown in Figure 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 Figure 1)), and the hook 65 may be hooked onto the holes 30a of the paper support member 30. In this way, the roll paper holder 20 can also be attached to the portable toilet 1 using the hook 65. In addition, it can be attached to the frame of a nursing care bed, handrails, chair frames, shelves, etc.

[0097] (Other embodiments) When the roll paper holder 20 is installed in a position where the support rod 31 extends horizontally, any support column extending vertically can be fitted into the fitting portion 33A. The paper support member 30 may have one or more other sliding parts in addition to the first sliding portion 32A and the second sliding portion 32B. The paper holding member 40 may have one or more other support columns slidably inserted into the sliding portion of the paper support member 20, in addition to the first support column 41 and the second support column 42.

[0098] In the above embodiment, the paper support member 30 includes a first sliding portion 32A and a second sliding portion 32B, and the paper pressing member 40 includes a first support column 41 and a second support column 42. However, either the first sliding portion 32A or the second sliding portion 32B may be omitted, and either the first support column 41 or the second support column 42 may be omitted. For example, as shown in Figure 19, the paper pressing member 40 may include only the first support column 41 as a support column, and the second support column 42 may be omitted. The roll paper holder 20 may also be a single-column type.

[0099] As shown in Figure 6, in the above embodiment, the paper press member 40 is assembled to the paper support member 30 such that the cutting blade 43B faces in the Y2 direction. However, the paper press member 40 can be assembled to the paper support member 30 in reverse. The paper press member 40 can be positioned in a direction that is easy for the user to use. As shown in Figure 20, the paper press member 40 may be assembled to the paper support member 30 such that the cutting blade 43B faces in the Y1 direction. In this case, the first support column 41 of the paper press member 40 is inserted into the second sliding hole 35B, and the second support column 42 is inserted into the first sliding hole 35A. The second sliding hole 35B is configured so that the first support column 41 of the paper press member 40 can be inserted in a position rotated 180° to the left or right from the position in which it is inserted into the first sliding hole 35A.

[0100] As shown in Figure 7, in the above embodiment, the paper support member 30 has an arm portion 33B of the fixing portion 33 that extends from the first sliding portion 32A in the X2 direction and the Y1 direction. However, the paper support member 30 can be fitted onto a support column such as an armrest column 8 in an inverted position. As shown in Figure 21, the paper support member 30 may be arranged so that the arm portion 33B extends from the first sliding portion 32A in the X2 direction and the Y2 direction.

[0101] As shown in Figure 16, a locking claw 56 may be provided on the edge of the body portion 53 of the fixing adapter 50. As shown in Figure 22(a), a recess 8d may be formed in the support column 8 into which the fixing adapter 50 is fitted, in which the locking claw 56 engages. As shown in Figure 22(b), when the fixing adapter 50 is fitted onto the support column 8, the locking claw 56 engages with the recess 8d, preventing the fixing adapter 50 from sliding down. Furthermore, by fitting the locking claw 56 into the recess 8d, the vertical position of the fixing adapter 50 relative to the support column 8 can be set to a predetermined position.

[0102] The configuration of the portable toilet 1 described above is merely an example. The configuration of the seat 3 is not particularly limited. Also, one or more of the armrests 7, backrest 6, and lid 9 are not necessarily required. If the seat 3 is designed to rest directly on the floor, the legs 4 may be omitted.

[0103] In the above embodiment, the roll paper holder 20 is used in a position where the Z direction is vertical, but the installation position of the roll paper holder 20 is not particularly limited. For example, the retaining rod 43 may be biased toward the support rod 31 by a spring or magnet, and the roll paper holder 20 may be installed in a position where the X direction is vertical. The load on the roll paper by the retaining rod 43 is preferably 30 gf or more.

[0104] 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. However, instead of the band 37, dot-shaped or linear rubber or elastomer may be provided on the inner circumferential surface of the fitting portion 33A. The specific configuration of the rotation restricting portion is not particularly limited. [Explanation of Symbols]

[0105] 1. Portable toilet 8. Armrest support 20 Roll paper holders 30 Paper support member 31 Support rod 32A First sliding part 32B Second sliding part 33 Fixed part 33A Fitting part 35A 1st sliding hole 35B 2nd sliding hole 40 Retaining member 41 1st pillar 42 Second pillar 43. Retaining rod 43A Rod-shaped body 43B cutting blade 100 Toilet Paper 102 Papers

Claims

1. A portable toilet roll paper holder that attaches to a portable toilet and holds toilet paper, A paper support member that rotatably supports the aforementioned toilet paper, The toilet paper holder comprises a paper holder member that slidably engages with the paper support member and presses down on the toilet paper supported by the paper support member from above, A roll paper holder for a portable toilet, configured such that the toilet paper is held between the paper pressing member and the paper support member, and the paper support member is fixed to the portable toilet.

2. The aforementioned paper support member includes a fitting portion, The roll paper holder for a portable toilet according to claim 1, wherein the fitting portion is fitted into the portable toilet.

3. The portable toilet roll paper holder according to claim 1 or 2, wherein the paper holding member is configured to hold down the toilet paper supported by the paper support member with a load of 30 gf or more.

4. The paper holding member comprises a holding rod positioned above the paper support member, and a cutting blade provided below the holding rod, which is either integral to or separate from the holding rod. A roll paper holder for a portable toilet according to any one of claims 1 to 3, wherein the toilet paper is held in place by the retaining rod and the paper support member.

5. A portable toilet roll paper holder that attaches to a portable toilet and holds toilet paper, A paper support member that rotatably supports the aforementioned toilet paper, The system includes a paper-holding member that slidably engages with the paper-supporting member and holds down the toilet paper supported by the paper-supporting member, The toilet paper is held in place by the paper-holding member and the paper-supporting member. The aforementioned portable toilet has a support column, The aforementioned paper support member has a C-shaped fitting portion in cross-section, A roll paper holder for a portable toilet, wherein the fitting portion is fitted onto the support column and is supported by the support column.

6. A portable toilet roll paper holder that attaches to a portable toilet and holds toilet paper, A paper support member that rotatably supports the aforementioned toilet paper, The system includes a paper-holding member that slidably engages with the paper-supporting member and holds down the toilet paper supported by the paper-supporting member, The paper support member comprises a support rod inserted into the core of the toilet paper roll, a sliding portion provided at one end of the support rod, and a fixing portion provided at the sliding portion. The paper-holding member comprises a support column that slidably engages vertically with the sliding portion, and a holding rod that extends laterally from the support column and is positioned above the support rod. A roll paper holder for a portable toilet, configured to hold the toilet paper between the aforementioned retaining rod and the aforementioned support rod.

7. A locking portion is formed on the sliding portion, into which the hook is locked. A roll paper holder for a portable toilet according to claim 6, which is suspended and supported by a hook that is engaged with the locking portion of the sliding portion.

8. A portable toilet equipped with toilet paper for portable toilets according to any one of claims 1 to 7.

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