Roll paper weight member

Abstract

To provide a weight member for roll paper, which can suppress the generation of noise when the roll paper is drawn out from a paper holder, can be applied to a type of paper holder in which a holding member is separated into left and right and swings, is hardly affected by the size of the diameter of the central hollow part of the roll paper, has a simple structure and can be reduced in cost. [Solution] The weight member 1 for the roll paper is a rod-shaped body that can be housed within the central hollow portion P1 of the roll paper P, and is positioned below the holding member 21 of the paper holder 2 that rotatably holds the roll paper P when the holding member 21 is inserted into the central hollow portion P1, thereby applying a downward load to the roll paper P.

Description

[Technical Field]

[0001] The present invention relates to a weight member for roll paper that suppresses noise when the roll paper is pulled out from a paper holder. [Background technology]

[0002] A paper holder that holds a rotatable roll of paper is attached to the partition wall of a toilet room. When the roll of paper is pulled out of the holder, a rattle is generated due to contact between the hollow core of the roll (central cavity) and the holder's holding member. Furthermore, if the roll of paper's hollow core is not a perfect circle but is distorted, the rotation of the roll when the paper is pulled out of the holder can cause the roll of paper to bounce up and down, causing the holder's paper holder cover to move wildly and generate a loud noise. Furthermore, the vibration noise transmitted to the paper holder can propagate to the adjacent room through the partition wall's base ribs, causing discomfort to those in the adjacent room.

[0003] Patent document 1 discloses an elastic body that is attached to the holding member of a paper holder, and patent document 2 discloses a technology that makes the rotation of the roll paper smoother when the paper is pulled out by inserting a device that becomes a new hollow core portion into the hollow core portion of the roll paper.

[0004] Furthermore, Patent Document 3 discloses a toilet paper holder that includes a fixed holding member that extends inward from the tip of the side plate, a rotor that is rotatably attached to the fixed holding member and has a maximum diameter smaller than the inner diameter of the toilet paper core tube, and an elastic member that is attached to the rotor and constantly presses against the inner surface of the core tube with its elastic force. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-62487 [Patent Document 2] Japanese Patent Application Publication No. 2020-65891 [Patent Document 3] Japanese Patent Application Laid-Open No. 2011-234870 Summary of the Invention [Problem to be solved by the invention]

[0006] However, the elastic body disclosed in Patent Document 1 has the disadvantage that it is difficult to apply to paper holders whose holding members are separated into left and right halves and swing. Furthermore, the device disclosed in Patent Document 2 can provide a perfect circle in place of a distorted roll paper core, but depending on the diameter of the hollow core, the device cannot be properly attached. Furthermore, the paper holder disclosed in Patent Document 3 has the disadvantage that it is complicated in structure and expensive.

[0007] The objective of this invention is to provide a weight member for roll paper that can suppress the generation of noise when pulling out roll paper from a paper holder, can be applied to types of paper holders in which the holding members are separated into left and right halves and swing, is less affected by the size of the diameter of the central hollow part of the roll paper, has a simple structure, and can be made low cost. [Means for solving the problem]

[0008] The weight member for roll paper of this invention is a rod-shaped body that can be accommodated within the central hollow portion of the roll paper, and is characterized in that it is positioned below the holding member of the paper holder that rotatably holds the roll paper when the holding member is inserted into the central hollow portion, thereby applying a downward load to the roll paper.

[0009] With the above configuration, the weight member for the roll paper is located within the central cavity of the roll paper and applies a downward load to the roll paper, making it less likely for the roll paper to bounce up and down, preventing the paper holder's paper retainer cover from moving wildly and reducing the generation of loud noise.In addition, because the weight member for the roll paper is a rod-shaped body that can be stored within the central cavity of the roll paper, it can be used with paper holders whose holding members are separated into left and right halves and swing, and is less affected by the diameter of the central cavity of the roll paper, resulting in a simple structure and low cost.

[0010] The end of the rod may have a catch that protrudes from the outer periphery of the rod and faces the side of the roll paper, which prevents the roll paper weight member from shifting left and right and falling out of the central hollow portion of the roll paper.

[0011] The hook portion may protrude from a portion of the outer periphery of the rod-shaped body. This makes it possible to insert the roll paper weight member into the central hollow portion so that the hook portion does not come into contact with the side of the roll paper or the holding member of the paper holder, and then change the position of the roll paper weight member so that the hook portion faces downward and comes into contact with the side of the roll paper.

[0012] The hook portion may be detachable from the end of the rod-shaped body, so that the hook portion can be removed so that it does not come into contact with the side of the roll paper or the holding member of the paper holder, and then the roll paper weight member can be inserted into the central hollow portion before the hook portion can be attached.

[0013] In the roll paper weight member, the rod-shaped body may have a specific gravity of 2.0 or more. A higher specific gravity allows the rod-shaped body to be smaller (thinner) in volume and apply a larger downward load to the roll paper.

[0014] In the weight member for roll paper, the specific gravity of the catch portion may be 2.0 or more. A higher specific gravity allows the catch portion to be smaller in volume (thinner) and to apply a larger downward load to the roll paper. [Effects of the Invention]

[0015] The paper roll weight member of this invention applies a downward load to the paper roll, preventing the paper roll from bouncing up and down, preventing the paper holder cover from moving wildly and reducing the generation of loud noises. It can also be applied to paper holders with holding members that are separated into left and right halves and swing, and is less affected by the diameter of the central cavity of the paper roll, resulting in a simple structure and low cost. [Brief explanation of the drawings]

[0016] [Figure 1] 10 is an explanatory diagram showing the roll paper weight member of the embodiment set on roll paper attached to a paper holder in a toilet room. FIG. [Figure 2] 10 is a side view illustrating the roll paper weight member of the embodiment set in the central hollow portion of the roll paper. FIG. [Figure 3] Figure (A) is an explanatory diagram showing the positional relationship between the roll paper weight member with a hook portion, the paper holder holding member, and the roll paper, and Figure (B) is an explanatory diagram showing the roll paper weight member with the hook portion removed. [Figure 4] 10 is an explanatory diagram showing the installation of a rectangular pillar-type weight member for roll paper with a hook portion in the central hollow portion of the roll paper according to an embodiment. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0017] An embodiment of the present invention will be described below with reference to the accompanying drawings. As shown in Figure 1, a paper holder 2 that rotatably holds a roll of toilet paper P is fixed with screws or the like to a wall surface within a toilet room 80 in which a toilet bowl 8 is installed. This paper holder 2 is of a type in which a holding member 21 that rotatably holds the roll of toilet paper P is separated into left and right halves and attached to side plates so that it can swing, but this is not limited to this, and the holding member 21 may also be a single-shaft type. Paper holders 2 equipped with this single-shaft type holding member 21 are available in types with and without side plates.

[0018] 2, the roll paper weight member 1 of this embodiment is a cylindrical rod-shaped body with a thickness (diameter) that allows it to be accommodated within the central hollow portion P1 of the roll paper P. For example, the diameter of the central hollow portion P1 is 38 mm, and the diameter of the rod-shaped body is, for example, 17 mm. The roll paper P is supported with the upper inner periphery of the central hollow portion P1 in contact with the top surface of the holding member 21, so a relatively large space is formed below the holding member 21 within the central hollow portion P1.

[0019] The length of the rod-shaped body is, for example, approximately 110 mm. If the rod-shaped body is made of a material with a specific gravity of 4.0 (single metal, alloy, or non-metallic material), the weight of the rod-shaped body will be 8.5 mm x 8.5 mm x 3.14 mm x 110 mm x 4.0 mm, or approximately 100 g. The weight of the roll paper weight member 1 is preferably approximately 100 to 150 g. The lower limit of this weight should be determined based on the minimum weight required to prevent the roll paper P from bouncing. Meanwhile, the upper limit of the weight is determined taking into account the force required to pull out the roll paper P and preventing the roll paper P from being accidentally cut when pulling out. The length of the rod-shaped body is approximately constant at approximately 110 mm, but the diameter of the rod-shaped body can be increased or decreased depending on the specific gravity of the material used.

[0020] With this weight, the roll paper weight member 1 is positioned below the holding member 21 of the paper holder 2 when the holding member 21 is inserted into the central hollow portion P1, and applies a downward load to the roll paper P. The specific gravity of the material used for the rod-shaped body is preferably 2.0 or more (preferably 3.0 or more), as a higher specific gravity allows the rod-shaped body to be smaller (thinner) in volume while still applying a large downward load to the roll paper P.

[0021] With the roll paper weight member 1 configured as described above, this weight member 1 is located within the central hollow P1 of the roll paper P and applies a downward load to the roll paper P, making it less likely for the roll paper P to bounce up and down, preventing the paper holder 2's paper retaining lid 22 from moving wildly and reducing the generation of loud noises. Furthermore, because the roll paper weight member 1 has a rod-shaped body that can be housed within the central hollow P1 of the roll paper P, it can be used with paper holder 2 holding members 21 that are separated into left and right and swing, and is less affected by the diameter of the central hollow P1 of the roll paper P, allowing for a simple structure and low costs.

[0022] As shown in Figure 3(A), the roll paper weight member 1 may have catches 11 at both ends of the rod-shaped body that protrude from the outer periphery of the rod and face the side of the roll paper P. This prevents the roll paper weight member 1 from shifting left or right and falling out of the central hollow portion P1 of the roll paper P. In this example, the catches 11 are disk-shaped and protrude at the same height around the entire periphery of the end of the cylindrical rod-shaped body.

[0023] As shown in Figure 3(B), one of the hooks 11 (or both) is detachable from one end of the rod-shaped body. For example, a hole 10 is formed in the center of the end of the rod-shaped body, and a protrusion 11a that detachably fits into the hole 10 is formed in the center of one side of the detachable hook 11. This allows the hook 11 to be removed so that it does not hit the side of the roll paper P, and the roll paper weight member 1 can be inserted into the central hollow portion P1, and then the hook 11 can be attached.

[0024] The specific gravity of the catch portion 11 may be 2.0 or higher (preferably 3.0 or higher). A higher specific gravity allows the catch portion 11 to be smaller (thinner) in volume while applying a larger downward load to the roll paper P. Note that if a narrow roll paper P is used, the catch portion 11 can be made thicker, so it is possible to prepare multiple catch portions 11 of different thicknesses and use different catch portions 11 depending on the width of the roll paper P. It is also possible to first place the roll paper weight member 1 with the catch portion 11 still attached into the central hollow portion P1 of the roll paper P, and then attach the roll paper P to the holding member 21 of the paper holder 2.

[0025] As shown in Figure 4, the roll paper weight member 5 can also be a rectangular rod. If the dimensions of this rectangular rod are, for example, 110 mm in length, 20 mm in horizontal length, and 14 mm in vertical length, and the specific gravity of this rod is 4.0, the weight of this rod will be approximately 120 g. The cross-sectional shape of this rod may be square or rectangular, as long as it is large enough to fit into the central hollow portion P1. Furthermore, this rectangular rod is not limited to a rectangular parallelepiped, and may be a hexagonal rod or other shape.

[0026] The roll paper weight member 5 has hooks 51 on both ends of a rectangular rod-shaped body. These hooks 51 protrude from part of the outer periphery of the rectangular rod-shaped body. Therefore, after inserting the roll paper weight member 5 into the central hollow portion P1 so that the hooks 51 do not come into contact with the side of the roll paper P or the holding member 21, the roll paper weight member 5 can be rotated, for example, by 90 degrees, so that the hooks 51 are facing downward and come into contact with the side of the roll paper P. Of course, the protruding shape of the hooks 51 is not limited to that shown in the figure.

[0027] In the roll paper weight member 5, the specific gravity of the material used for the rod-shaped body is preferably 2.0 or more (preferably 3.0 or more), as a higher specific gravity allows the volume of the rod-shaped body to be smaller (thinner) while applying a large downward load to the roll paper P. Also, the specific gravity of the catch portion 51 should be 2.0 or more (preferably 3.0 or more), as a higher specific gravity allows the volume of the catch portion 51 to be smaller (thinner) while applying a large downward load to the roll paper P.

[0028] Table 1 below shows the maximum noise level [dBA] detected by a microphone (NL-52 sound and vibration measuring instrument manufactured by Rion Co., Ltd.) placed in the hallway 1 m from the partition wall of the toilet room 80 when paper was being unwound from the roll paper P, comparing the case where the paper roll weight member 5 (weighing approximately 120 g) with the catch portion 51 removed was inserted into the central hollow portion P1 with the case where nothing was inserted into the central hollow portion P1. Noise was also measured when the diameter of the roll paper P was 100 mm (at the beginning of use) and when the diameter of the roll paper P was 70 mm (mid-way through use).

[0029] [Table 1]

[0030] At the beginning of use, the noise level was found to be somewhat lower when nothing was inserted into the central hollow P1, but from the middle of use onwards, the noise level was found to be lower when the paper roll weight member 5 was inserted into the central hollow P1. This is because as the diameter of the paper roll P becomes smaller, the rotation speed of the paper roll P increases when the same amount of paper is pulled from the paper roll P, and the paper roll P becomes lighter and more likely to bounce, so from the middle of use onwards, the noise level increases when nothing is inserted into the central hollow P1.

[0031] Based on this result, it is possible to consider not using the roll paper weight member 5(1) when the diameter of the roll paper P is large, but to wait until the diameter of the roll paper P has become smaller to some extent before using it.

[0032] Furthermore, in the above experiment, a roll paper weight member 5 without the catch portion 51 was used, and therefore it is expected that the left and right movement of the roll paper weight member 5 would result in rubbing sounds with the roll paper P and collision sounds with the holding member 21, etc. If the catch portion 51 had been attached, the roll paper weight member 5 would not have moved left and right and hit the holding member 21, and it is therefore assumed that noise would have been further suppressed.

[0033] Although the embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited to the illustrated embodiments. Various modifications and variations can be made to the illustrated embodiments within the same scope as the present invention or within an equivalent scope. [Explanation of symbols]

[0034] 1: Weight member for roll paper 2: Paper holder 5: Weight member for roll paper 8: Toilet 10: Hole 11: Hook 11a: Protrusion 21: Holding member 22: Paper holder cover 51: Hook 80: Toilet room P: Roll paper P1: Central cavity

Claims

1. A weight member for roll paper, which is rod-shaped and can be accommodated within the central hollow portion of the roll paper, and is positioned below the holding member of a paper holder that rotatably holds the roll paper when the holding member is inserted into the central hollow portion, thereby applying a downward load to the roll paper.

2. 2. The weight member for roll paper according to claim 1, wherein the rod-shaped member has a hook at an end thereof that protrudes from the outer periphery of the rod-shaped member and faces the side of the roll paper.

3. 3. The weight member for roll paper according to claim 2, wherein the hook portion protrudes from a part of the outer periphery of the rod-shaped body.

4. 3. The weight member for roll paper according to claim 2, wherein the hook portion is detachably attached to the end of the rod-shaped body.

5. 5. The weight member for roll paper according to claim 1, wherein the rod-shaped body has a specific gravity of 2.0 or more.

6. 5. The weight member for roll paper according to claim 2, wherein the specific gravity of the catch portion is 2.0 or more.

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