Roll paper cutter

Abstract

We offer a simple, portable roll paper cutter that attaches to a bare roll of paper, neatly cuts it to the desired length, and prevents the cut ends from hanging down after cutting. [Solution] The device comprises a main body made of an arc-shaped plate with a paper cutting section that covers the roll paper, a first support section extending from the upper end of the main body toward the roll paper, a second support section extending from the lower end of the main body in the same direction as the first support section, and a shaft that passes through the core of the roll paper. The first support section has a first elongated hole, the second support section has a second elongated hole, and the shaft has a sliding mechanism that allows it to move closer to and away from the main body by hooking into the first and second elongated holes. The device is attached to a bare roll of paper, placed on its side in the palm of the hand, and the torn end is grasped, pulled out, and cut.

Description

Technical Field

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[0005]

[0001] The present invention is convenient when cutting roll paper and mainly relates to using toilet paper on a table or the like.

Background Art

[0002] Conventional roll paper cutters mainly proposed are those that pull out and cut the roll paper while placing the main body slightly larger than the unused roll paper (see, for example, Patent Documents 1 and 2).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

[0006] A roll paper cutter according to a second embodiment of the present invention is a roll paper cutter according to a first embodiment, The sliding mechanism is characterized by having a first pressing portion and a second pressing portion in the direction extending from the upper end and lower end of the shaft, respectively, with the first pressing portion hooked onto the upper edge of the first elongated hole and the second pressing portion hooked onto the lower edge of the second elongated hole, thereby allowing the shaft to move along the elongated hole.

[0007] A third embodiment of the present invention is a roll paper cutter according to the second embodiment, The roll paper can be loaded and removed by making either the first or second pressing part detachable from the shaft, or by making the shaft separable into two upper and lower parts and connectable. [Effects of the Invention]

[0008] The roll paper cutter of this invention has a simpler structure and is smaller than conventional roll paper cutters, making it easy to quickly grasp from any direction and bringing it close to the user, with the paper cutting action being almost the same as handling a bare roll of paper. Because the shaft is movable, the cutting part can contact the paper regardless of the remaining amount of paper in the roll, and the required length of roll paper can be cleanly cut even outside of the perforations. In addition, when the roll paper is placed vertically after cutting, the cut ends are covered by the main body, preventing them from sagging and keeping the entire roll of paper neat. [Brief explanation of the drawing]

[0009] [Figure 1] This is a perspective view illustrating a roll paper cutter according to one embodiment of the present invention. [Figure 2] Figure 1 is a plan view of the roll paper cutter. [Figure 3] Figure 1 is a bottom view of the roll paper cutter. [Figure 4] Figure 1 is a front view of the roll paper cutter. [Figure 5] Figure 1 is a rear view of the roll paper cutter. [Figure 6] Figure 1 is a side view of the roll paper cutter. [Figure 7] Figure 1 is a cross-sectional view of the roll paper cutter, showing both the overall cross-sectional view and a partially enlarged cross-sectional view of the cutting line AA in the plan view. [Figure 8] Figure 1 is a perspective view illustrating the state of a roll paper cutter with a roll of paper attached. [Figure 9] Figure 1 is an instructional diagram illustrating how to use the roll paper cutter. [Modes for carrying out the invention]

[0010] Figure 1 is a perspective view illustrating one embodiment of the present invention of a roll paper cutter. Figures 2 to 6 are drawings of the roll paper cutter of Figure 1 viewed from various angles. The illustrated roll paper cutter 20 is mainly applied to toilet paper that is placed on a table or the like. The roll paper cutter 20 has a first support part 6 and a second support part 7 that extend from the upper and lower ends of the main body part 1 and support the shaft 3 that passes through the inside of the roll paper core from above and below, and make it movable in the direction of approaching and moving away from the main body part 1.

[0011] The main body portion 1 is located on the outer side in the radial direction of the vertically placed roll paper 13, and has at both ends a cutting portion 2 that extends over the entire paper width of at least the roll paper 13 so that it can be used with either hand. The shaft 3 is located inside the core of the roll paper 13. The first support portion 6 and the second support portion 7 extend toward the roll paper side at the upper end portion and the lower end portion of the main body portion 1 respectively, and support the shaft 3 so as to be slidable in the direction of approaching and separating from the main body portion 1.

[0012] The first support portion 6 and the second support portion 7 each have a first elongated hole 8 that extends along the direction of approaching and separating from the main body portion 1, and a second elongated hole 9 that is of the same type as the first elongated hole 8 and extends in the same direction. The shaft 3 has a first pressing portion 4 at the upper end portion and a second pressing portion 5 at the lower end portion. The first pressing portion 4 in FIG. 7 is hooked on the upper edge portion of the first elongated hole 8, and the second pressing portion 5 is hooked on the lower edge portion of the second elongated hole 9. Thereby, the shaft 3 can be slidably moved along the first elongated hole and the second elongated hole without coming out in the direction of approaching and separating from the main body portion 1.

[0013] FIG. 7 is a cross-sectional view of the roll paper cutter 20, in which an overall cross-sectional view and a partial enlarged cross-sectional view are juxtaposed. Either the first pressing portion or the second pressing portion is at least removably attached from the shaft 3 for loading the roll paper 13, or the shaft 3 can be separated and joined into two parts vertically. In the example of FIG. 7, the male screw 11 of the first pressing portion and the female screw 12 of the shaft 3 are screwed together, so that the first pressing portion and the shaft 3 are detachably connected. In addition to connection by screws, it may be detachably connected by fitting one convex portion into the other concave portion and being stopped by friction. Also, the position where the shaft 3 is separated and joined into two parts vertically is free. When the shaft is not passed through the elongated hole, it may be made thinner than the shaft diameter and extended, the extended portion is passed through the elongated hole, and a hooking portion is provided at the tip thereof.

[0014] According to the JIS standard, the size of toilet paper, the paper width is 114 mm ± 2 mm, the inner diameter of the core is 38 mm ± 1 mm, and the winding diameter is 120 mm or less. Therefore, the height of the main body 1 is preferably about 120 mm, which is slightly more than the paper width of the JIS standard. Also, in order to bring the main body cutting part 2 into contact with the toilet paper regardless of the remaining amount of the paper, the shape of the main body in plan view is a substantially arc shape with a thickness of about 2 to 4 mm, and the overall width is preferably about 33 mm, which is shorter than the outer diameter of the toilet paper core of about 40 mm. The cutting part 2 provided on the main body part 1 is at an angle that makes it easy to cut the paper.

[0015] Figure 8 is a perspective view illustrating a state where the roll paper cutter 20 is set on the roll paper 13. Considering its function and connection from the main body part 1, the shaft 3 that rotates the main body part 1, the first support part 6, and the second support part 7, which is located inside the roll paper core, is preferably a cylindrical shape with a diameter of about 10 mm. Considering ease of handling, the first pressing part 4 and the second pressing part 5 are both preferably disc-shaped with a diameter of about 20 mm, but their shapes are free as long as they can be hooked on the long hole and move the shaft 3 in the direction of approaching and separating from the main body part 1.

[0016] For many commercially available roll papers, the inner diameter of the core is smaller than the winding thickness dimension of the paper (half of the difference between the winding diameter and the outer diameter of the core). The slide mechanism is such that as the paper decreases, the main body approaches the core and eventually comes into contact, and the shaft 3 moves along the long hole in the direction of the main body 1. The range of the first long hole 8 and the second long hole 9 is preferably such that, compared to the state where an unused roll paper is mounted on the roll paper cutter 20, the shaft 3 moves in the direction of approaching and separating from the main body part 1, and the main body part 1 can come into contact with the roll paper core.

[0017] Figure 9, which illustrates the usage state of the roll paper cutter 20, is for the right-handed case. The roll paper cutter 20 is attached, and the main body 1 is positioned on the right side of the roll paper 13 on the left palm, then the user places the paper scraps in their right hand and pulls out the required amount while rotating the roll paper. After that, the main body 1 is held down with the fingers towards the roll paper core. This ensures that the cutting part 2 is in close contact with the roll paper 12, allowing the user to cut the paper with their right hand. Because shaft 3 is slidable, the distance between shaft 3 and main body 1 is always greater than the thickness of the roll of paper. Therefore, when the pressure from the fingers is removed after cutting the paper, the main body 1, which is located on the side of the side of the roll of paper lying on its side, slides downward due to its own weight, revealing the paper scraps that were hidden in the main body 1, and allowing the next roll of paper to be dispensed. Since the cutting section is located on both sides of the main body, left-handed users can load the roll paper in the opposite direction for use.

[0018] The roll paper 13 with the roll paper cutter 20 set is primarily placed vertically, and it is preferable to provide a recess 10 on the bottom surface of the second support part 7 around the edge of the second elongated hole 9, within the range in which the second pressing part 5 located at the bottom of the shaft can move (see Figures 3 and 7). This ensures that the second pressing part 5 does not protrude below the bottom surface of the second support part 7, thus maintaining a stable vertical position. The size of the second support portion 7 is flexible as long as it is large enough to accommodate the second elongated hole 9 and keep the unused roll of paper 13 in a stable position without tilting.

[0019] The shape of the first support part 6 is flexible as long as the elongated holes are provided in the same direction along the diameter of the roll paper, similar to the second support part 7. However, considering the overall design of the roll paper cutter 20, it is preferable that it be the same shape as the second support part 7. In addition, adding a cover to the top results in a simpler and cleaner design.

[0020] Considering the usage and shape of this invention, it is suitable to manufacture it using lightweight plastic that is easy to mold into various shapes, and it can blend into interiors with designs such as wood grain or floral patterns. Furthermore, for a high-end version, it is also possible to manufacture it using lightweight metal with embossing or laser engraving. [Explanation of symbols]

[0021] 1. Main body 2 Cut section 3 axes 4. First pressing section 5. Second pressing section 6 First support part 7 Second support part 8 1st long hole 9 2nd long hole 10 recesses 11 Male screw 12 Female thread 13 Roll paper 20 Roll Paper Cutter

Claims

1. A roll paper cutter for cutting roll paper, The main body consists of a roughly arc-shaped plate with a cutting section that covers the roll paper, A first support portion extends from the upper end of the main body toward the roll paper, a second support portion extends from the lower end of the main body in the same direction as the first support portion, and a shaft is provided inside the core of the roll paper. The first support portion has a first elongated hole, and the second support portion has a second elongated hole. A roll paper cutter characterized in that the shaft is equipped with a sliding mechanism that allows it to hook into the first and second elongated holes and move closer to and away from the main body.

2. The roll paper cutter according to claim 1, characterized in that the sliding mechanism is provided with a first pressing portion and a second pressing portion in directions extending from the upper end and lower end of the shaft, the first pressing portion is hooked onto the upper edge of the first elongated hole, and the second pressing portion is hooked onto the lower edge of the second elongated hole, thereby enabling the shaft to move along the elongated hole.

3. The roll paper cutter according to claim 2, characterized in that either the first pressing part or the second pressing part is removable from the shaft, or the shaft is separable into two upper and lower parts and can be joined together, thereby enabling the loading and removal of roll paper.

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