JP2017148619A - Manufacturing method of toothbrush - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manufacturing method of a toothbrush in which a step of attaching a toothbrushing part to a handle part is not necessary.SOLUTION: A manufacturing method of a toothbrush 1 including a handle part 10 and a toothbrushing part 20 consisting of a plurality of linear strips 22 comprises a preparation step and a slitting step. The preparation step is a step of preparing a paper shaft 30 in which a tip part 32 becomes the toothbrushing part 20 and the remnant part 34 becomes the handle part 10. The slitting step is a step of cutting the tip part 32 of the paper shaft 30 prepared by the preparation step in the radial direction thereof to separate the tip part 32 into the linear strips 22.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a method of manufacturing a toothpaste for brushing teeth.

  As a conventional toothpaste, there is one described in Patent Document 1, for example. The toothbrush described in the document includes a handle portion and a brush portion. The handle part is formed by connecting two rectangular cardboards via a folding mechanism. The brush part is attached to the tip of the handle part.

JP 2005-110727 A

  In the above-described toothpaste, the brush part functions as a toothbrushing part for brushing teeth. That is, the teeth can be brushed by holding the handle portion in the hand and rubbing the teeth with the brush portion. However, in order to manufacture this toothpaste, a step of attaching the toothpaste portion to the handle portion is required. Existence of such a process becomes a factor that causes complication of the manufacturing process of the toothpaste.

  This invention is made | formed in view of the said subject, and it aims at providing the manufacturing method of the toothpaste which does not require the attachment process of the toothpaste part with respect to a handle | pattern part.

  A method for manufacturing a toothpaste according to the present invention is a method for manufacturing a toothpaste having a handle part and a toothpaste part composed of a plurality of filaments, wherein the tip part becomes the toothpaste part and the remaining part becomes the handle part. A preparation step for preparing a shaft, and a cutting for dividing the tip portion into the plurality of filaments by cutting the tip portion of the paper shaft prepared in the preparation step along a radial direction of the tip portion. And a process.

  In this manufacturing method, a paper shaft constituting both the handle portion and the tooth brushing portion is prepared. And the front-end | tip part of a paper shaft is cut | disconnected along the radial direction of the said front-end | tip part, and the said front-end | tip part is divided | segmented into a some filament. In this way, the tip of the paper shaft divided into a plurality of filaments becomes a tooth brushing portion, and the remaining portion of the paper shaft becomes a handle portion. For this reason, the toothpaste which has a handle | pattern part and a toothpaste part can be obtained, without performing the process of attaching a toothpaste part with respect to a handle | pattern part.

  ADVANTAGE OF THE INVENTION According to this invention, the manufacturing method of the toothpaste which does not require the attachment process of the toothpaste part with respect to a handle | pattern part is implement | achieved.

It is a side view which shows one Embodiment of the toothpaste by this invention. It is a perspective view which shows the paper shaft 30 prepared in a preparation process. It is a perspective view which shows the paper shaft 30 by which the rear end part 36 was processed in the manufacturing process. It is sectional drawing which shows the state in which the paper shaft 30 was accommodated in the fixing tool 40 in the cutting process. It is the figure which looked at the fixing tool 40 of FIG. 4 from the direction of the central axis. It is sectional drawing for demonstrating the blade 50 used in a cutting process. It is the figure which looked at the blade 50 of FIG. 6 from the direction of the central axis of the fixing tool 40. FIG. FIG. 4 is a cross-sectional view showing a state where a blade 50 is inserted into the tip end portion 32 of the paper shaft 30. It is a front view which shows the front-end | tip part 32 after the 1st cutting | disconnection. It is a front view which shows the front-end | tip part 32 after the 2nd cutting | disconnection. It is a front view which shows the front-end | tip part 32 after the 3rd cutting | disconnection. It is a side view which shows the paper shaft 30 by which the front-end | tip part 32 was divided | segmented into the several filament 22 in the cutting process. It is sectional drawing for demonstrating the shaping tool 60 used in a shaping process. FIG. 6 is a cross-sectional view showing a state in which the paper shaft 30 is passing through the shaping tool 60. FIG. 6 is a cross-sectional view showing a state after the paper shaft 30 has passed through the shaping tool 60. It is sectional drawing for demonstrating one modification of the manufacturing method of the toothpaste. It is a side view which shows the fixing tool 40 which concerns on a modification. It is the figure which looked at the fixing tool 40 of FIG. 17 from the direction of the central axis. It is a side view for demonstrating the other modification of the manufacturing method of the toothpaste.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the description of the drawings, the same reference numerals are assigned to the same elements, and duplicate descriptions are omitted.

  FIG. 1 is a side view showing an embodiment of a toothpaste according to the present invention. The toothpaste 1 includes a handle portion 10 and a toothpaste portion 20. The handle portion 10 is a portion that the user of the toothpaste 1 has by hand. The handle 10 has a round bar shape. A brushing portion 20 is provided on one end side of the handle portion 10. The other end portion of the handle portion 10 has a tapered shape. The handle part 10 and the toothbrushing part 20 are entirely composed of a single sheet of paper. In other words, one paper sheet forms both the handle portion 10 and the toothpaste portion 20.

  The toothbrushing part 20 is a part for brushing teeth. The toothpaste part 20 consists of a plurality of filaments 22. Each filament 22 is constituted by an elongated paper piece that is a part of the paper sheet. A piece of paper constituting each filament 22 is continuous with the handle 10. That is, the plurality of filaments 22 are branched from one end of the handle 10. The toothbrushing part 20 may be impregnated or attached in advance with an oral medicine (for example, toothpaste). The drug may be in the form of liquid, paste, gel, or powder.

  With reference to FIGS. 2 to 15, an example of a method of manufacturing the toothpaste 1 will be described as an embodiment of the method of manufacturing the toothpaste according to the present invention. This manufacturing method includes a preparation process, a processing process, a cutting process, and a shaping process.

  The preparation step is a step of preparing the paper shaft 30 (see FIG. 2). The paper shaft 30 is formed by rounding a rectangular paper sheet into a rod shape. In this step, the paper shaft 30 may be formed by rolling a paper sheet into a rod shape, or a ready-made paper shaft 30 may be procured. The paper shaft 30 includes a tip portion 32 that is a portion having a certain length from the tip, and a remaining portion 34 that is a portion other than the tip portion 32. However, the length d1 of the distal end portion 32 is smaller than the length d2 of the remaining portion 34. The length d1 of the distal end portion 32 is, for example, about 5 to 15 mm. The length d2 of the remaining portion 34 is, for example, about 55 to 75 mm. Further, the thickness d3 (diameter) of the paper shaft 30 is, for example, about 1.5 to 4 mm. In the paper shaft 30, the tip end portion 32 becomes the tooth brushing portion 20, and the remaining portion 34 becomes the handle portion 10. The paper shaft 30 may be waterproofed or water-repellent as necessary.

  The processing step is a step of processing the rear end portion 36 of the paper shaft 30 prepared in the preparation step into a tapered shape (see FIG. 3). The rear end portion 36 is a portion having a certain length from the rear end of the paper shaft 30. The rear end portion 36 constitutes a part of the remaining portion 34. For example, the rear end portion 36 can be processed into a tapered shape by cutting the rear end portion 36 of the paper shaft 30 with a blade. Specifically, for example, the paper shaft 30 may be fixed in a groove, and the rear end portion 36 may be cut with a p-blade (p is an integer of 2 or more and 5 or less) that rotates at high speed. The surface of the rear end portion 36 may be polished after cutting.

  The said process may be performed by grinding the rear-end part 36 with an abrasive | polishing material, and may be performed by pressing the rear-end part 36 against a type | mold. When grinding with an abrasive, it is preferable to use a plurality of abrasives with different eye roughness. For example, it is conceivable to grind the rear end portion 36 with a relatively finer second abrasive after grinding the rear end portion 36 with a relatively coarser first abrasive. In addition, the third abrasive having a finer grain than the first abrasive and having a coarser grain than the second abrasive, the first abrasive, the third abrasive, and the second abrasive You may grind the rear-end part 36 in order. For example, sandpaper may be used as the abrasive.

  The cutting step is a step of dividing the tip 32 into a plurality of filaments 22 by cutting the tip 32 of the paper shaft 30 prepared in the preparation step along the radial direction of the tip 32. In this embodiment, the front-end | tip part 32 is cut | disconnected along the some radial direction. This cutting process is performed after the machining process.

  In the cutting process, the tip 32 is cut in a state where the paper shaft 30 is accommodated in the fixture 40 (see FIG. 4). The figure shows a cross section including the central axis of the fixture 40. In the present embodiment, the distal end portion 32 is cut while only the remaining portion 34 of the paper shaft 30 is accommodated in the fixture 40. That is, the cutting of the distal end portion 32 is performed in a state where the entire distal end portion 32 is exposed from the fixture 40.

  The fixture 40 has a cylindrical shape, and accommodates and fixes the paper shaft 30. Specifically, the fixture 40 has a cylindrical shape, and the inner diameter thereof is substantially equal to the thickness d3 of the paper shaft 30. The paper shaft 30 is accommodated in the fixture 40 so that the central axis of the paper shaft 30 and the central axis of the fixture 40 coincide with each other, whereby the paper shaft 30 is fixed to the fixture 40. The fixture 40 is rotatable around its central axis A1 (see FIG. 5). The figure is a view of the fixture 40 as seen from the direction of the central axis A1. When the fixing tool 40 is rotated, the paper shaft 30 accommodated therein is also rotated together with the fixing tool 40. It is preferable that the fixture 40 is rotatable at an angular increment of 180 ° / n (n is an integer of 2 or more).

  Furthermore, in the cutting process, the front-end | tip part 32 is cut | disconnected using the blade 50 (refer FIG. 6). The blade 50 moves in a plane P <b> 1 including the central axis of the tip end portion 32. The blade 50 may cut the tip 32 while reciprocating, or may cut the tip 32 while rotating. The blade 50 is rotatable around an extension line of the central axis A1 of the distal end portion 32 (see FIG. 7). The figure is a view of the blade 50 as viewed from the direction of the central axis A1. The blade 50 is preferably rotatable at an angular increment of 180 ° / m (m is an integer of 2 or more).

  As shown in FIG. 8, the blade 50 is inserted into the leading end portion 32 of the paper shaft 30 accommodated in the fixture 40, and the leading end portion 32 is cut along the radial direction. As a result, as shown in FIG. 9, a cut end C <b> 1 that coincides with one diameter of the distal end portion 32 is formed at the distal end portion 32. Next, after removing the blade 50 from the distal end portion 32, the fixture 40 or the blade 50 is rotated by a predetermined angle. That is, the fixture 40 is rotated by a predetermined angle around the central axis A1, or the blade 50 is rotated by a predetermined angle around an extension line of the central axis A1. In this example, the angle is 60 °. Thereafter, the blade 50 is inserted into the distal end portion 32, and the distal end portion 32 is cut along its radial direction. As a result, as shown in FIG. 10, a cut end C <b> 2 that coincides with the other diameter of the distal end portion 32 is formed in the distal end portion 32. The angle formed by the cut C1 and the cut C2 is 60 °.

  Subsequently, after removing the blade 50 from the distal end portion 32, the fixture 40 or the blade 50 is rotated by 60 °. Thereafter, the blade 50 is inserted into the distal end portion 32, and the distal end portion 32 is cut along its radial direction. As a result, as shown in FIG. 11, a cut end C <b> 3 corresponding to the other diameter of the tip end portion 32 is formed at the tip end portion 32. The angle formed by the cut C2 and the cut C3 is 60 °. Thus, the front-end | tip part 32 is divided | segmented into the some filament 22 by cut | disconnecting into 6 equal parts (refer FIG. 12). Thereafter, if necessary, shavings and the like adhering to the filament 22 are removed. For this removal, for example, a blower that injects air can be used.

  The shaping step is a step of shaping the leading end portion 32 of the paper shaft 30 so that the extending directions of the plurality of filaments 22 are aligned. This shaping process is performed after the cutting process. In the shaping step, the tip 32 is shaped using the shaping tool 60 (see FIG. 13). The shaping tool 60 has a cylindrical shape. Specifically, the shaping tool 60 has a tapered shape with a diameter that gradually decreases from the inlet 60a toward the outlet 60b. Thereby, in the shaping tool 60, the diameter of the exit 60b is smaller than the diameter of the inlet 60a. The diameter of the outlet 60b is substantially equal to the thickness d3 of the paper shaft 30. As shown in FIGS. 14 and 15, when the paper shaft 30 is passed through the shaping tool 60 from the rear end portion 36 side, the force is received from the shaping tool 60 when the leading end portion 32 passes through the outlet 60b. Thereby, the front-end | tip part 32 is shaped so that the extending direction of the some filament 22 may align. Thus, the toothpaste 1 shown in FIG. 1 is obtained. The toothpaste 1 is packed in a packaging bag one by one or a plurality as needed. Prior to packing the toothpaste 1 in a packaging bag, the toothpaste 1 may be sterilized.

  The effect of this embodiment will be described. In the manufacturing method of this embodiment, the paper shaft 30 which comprises both the handle | pattern part 10 and the toothbrushing part 20 is prepared. And the front-end | tip part 32 is divided | segmented into the some filament 22 by the front-end | tip part 32 of the paper shaft 30 being cut | disconnected along the radial direction. Thus, the tip end portion 32 of the paper shaft 30 divided into the plurality of filaments 22 becomes the tooth brushing portion 20, and the remaining portion 34 of the paper shaft 30 becomes the handle portion 10. For this reason, the toothbrush 1 which has the handle | pattern part 10 and the toothpaste part 20 can be obtained, without performing the process of attaching the toothpaste part 20 with respect to the handle | pattern part 10. FIG. Therefore, the manufacturing method of the toothpaste 1 which does not need the attachment process of the toothpaste part 20 with respect to the handle | pattern part 10 is implement | achieved.

  In addition, the paper shaft 30 has a structure in which paper sheets overlap each other along the radial direction. Therefore, when the leading end portion 32 of the paper shaft 30 is cut along the radial direction, a large number of filaments 22 can be obtained by a single cutting. For this reason, the toothbrushing part 20 which consists of many filament 22 can be efficiently formed by cutting the front-end | tip part 32 of the paper shaft 30 along a radial direction. Increasing the number of the filaments 22 constituting the toothbrushing portion 20 in this way is advantageous for simultaneously brushing a wide range of teeth.

  In the toothpaste 1, the toothpaste portion 20 is soft because it is composed of a plurality of paper-made filaments 22. Therefore, the toothpaste 1 has an advantage that it is difficult to damage teeth and gums. For this reason, the toothpaste 1 can be used with peace of mind for children. Further, even when the filament 22 is separated from the handle 10 and remains in the mouth when brushing teeth, there is little fear of damaging the mouth.

  In the cutting process, the tip 32 of the paper shaft 30 is cut along the plurality of radial directions. Thereby, compared with the case where it cut | disconnects only along one radial direction, the toothbrushing part 20 which consists of more filament 22 can be formed.

  In the cutting process, the tip 32 is cut in a state where the paper shaft 30 is accommodated in the fixture 40. Thereby, since the paper shaft 30 can be stably fixed, the front end portion 32 can be easily cut. However, it is not essential to use the fixture 40 in the cutting process.

  The fixture 40 is rotatable around its central axis. For this reason, even if it is a case where one blade which can move only within the same plane is used, it is possible to cut the tip 32 along a plurality of radial directions by rotating the fixture 40. Become.

  When the fixture 40 can be rotated in increments of 180 ° / n, the tip 32 can be divided into 2n portions by cutting n times while rotating the fixture 40 by 180 ° / n. .

  In the cutting process, the tip 32 is cut in a state where only the remaining portion 34 of the paper shaft 30 is accommodated in the fixture 40. In this case, since the entire tip portion 32 is exposed from the fixture 40, the tip portion 32 can be easily cut.

  In the cutting process, the tip 32 is cut using a blade 50 that moves in a plane including the central axis of the tip 32 of the paper shaft 30. By using the blade 50, the tip 32 can be easily cut along the radial direction.

  The blade 50 is rotatable around an extension line of the central axis of the distal end portion 32. For this reason, even if it does not rotate the paper shaft 30, it becomes possible to cut | disconnect the front-end | tip part 32 along several radial directions by rotating the blade 50. FIG.

  When the blade 50 is rotatable at an angular increment of 180 ° / m, the tip end portion 32 can be divided into 2 m portions by cutting m times while rotating the blade 50 by 180 ° / m.

  A processing step for processing the rear end portion 36 of the paper shaft 30 into a tapered shape is performed. By processing the rear end portion 36 into a tapered shape in this manner, in the toothpaste 1, it becomes easier to clean between the teeth at the rear end portion 36. However, it is not essential to execute the machining process.

  The cutting process is performed after the machining process. In this case, the machining process can be performed more easily than when the cutting process is performed prior to the machining process. This is because if the front end portion 32 is cut before the processing step, the front end portion 32 tends to become an obstacle when the rear end portion 36 is processed into a tapered shape. However, it is not essential to perform the cutting process after the machining process. The cutting process may be performed prior to the machining process.

  A shaping process for shaping the tip 32 of the paper shaft 30 is performed so that the extending directions of the plurality of filaments 22 are aligned. By shaping the tip 32 in this manner, the beauty of the toothpaste 1 can be improved. However, it is not essential to perform the shaping process.

  In the shaping process, the leading end 32 is shaped by passing the paper shaft 30 through the shaping tool 60 from the rear end 36 side. Thereby, the front-end | tip part 32 can be shape | molded easily. However, it is not essential to use the shaping tool 60 in the shaping process. For example, you may shape the front-end | tip part 32 by pressing the front-end | tip part 32 toward the radial inside.

  The present invention is not limited to the above embodiment, and various modifications can be made. In the said embodiment, the case where only the remainder 34 of the paper shaft 30 was accommodated in the fixing tool 40 was illustrated. However, in the cutting process, as shown in FIG. 16, the tip portion 32 may be cut in a state where both the tip portion 32 and the remaining portion 34 of the paper shaft 30 are accommodated in the fixture 40. In this way, by accommodating up to the tip 32 of the paper shaft 30 in the fixture 40, the paper shaft 30 can be more stably fixed.

  In this case, a pair of slits 42 may be formed in a portion of the fixture 40 that covers the tip 32 of the paper shaft 30 as shown in FIG. As shown in FIG. 18, the pair of slits 42 are provided at positions facing each other across the central axis of the fixture 40. Each slit 42 extends in parallel with the central axis. FIG. 18 is a view of the fixture 40 of FIG. 17 as viewed from the direction of the central axis thereof. The slit 42 becomes a path of the blade 50 when the tip portion 32 is cut using the blade 50. A plurality of pairs of slits 42 may be formed in the fixture 40.

  In the said embodiment, the case where the handle | pattern part 10 which the whole extends linearly was illustrated. However, as shown in FIG. 19, a handle portion 10 that partially extends in a curved shape may be formed. In the figure, the vicinity of the brushed portion 20 in the handle portion 10 extends in a curved shape. When the handle portion 10 has such a shape, the back side of the tooth can be easily polished. In this case, a molding step is performed in which a portion in the vicinity of the tip 32 of the paper shaft 30 is formed into an arc shape. It is preferable that the forming step is performed after the cutting step. In the forming step, for example, the vicinity of the paper shaft 30 can be pressed into a mold to form the vicinity in an arcuate shape.

  In the said embodiment, the case where the front-end | tip part 32 was cut | disconnected several times by rotating the fixing tool 40 or the blade 50 was illustrated. However, the distal end portion 32 may be cut a plurality of times by sequentially using a plurality of blades whose angles are adjusted in advance. However, it is not essential to cut the tip 32 a plurality of times in the cutting process. The cutting of the distal end portion 32 may be performed only once.

DESCRIPTION OF SYMBOLS 1 Toothpaste 10 Handle part 20 Toothbrush part 22 Line 30 Paper shaft 32 Front end part 34 Remaining part 36 Rear end part 40 Fixing tool 42 Slit 50 Blade 60 Shaping tool 60a Inlet 60b Outlet

Claims (21)

A method for producing a toothpaste having a handle and a toothpaste portion comprising a plurality of filaments,
A preparation step of preparing a paper shaft in which the tip portion becomes the tooth brushing portion and the remaining portion becomes the handle portion; and
A cutting step of dividing the tip portion into the plurality of filaments by cutting the tip portion of the paper shaft prepared in the preparation step along the radial direction of the tip portion;
The manufacturing method of the toothpaste characterized by including. In the manufacturing method of the toothpaste of Claim 1,
In the cutting process, the toothpaste manufacturing method for cutting the tip portion of the paper shaft along a plurality of radial directions of the tip portion. In the manufacturing method of the toothpaste of Claim 1 or 2,
In the cutting process, a toothpaste manufacturing method for cutting the tip portion in a state in which the paper shaft is received in a cylindrical fixture that receives and fixes the paper shaft. In the manufacturing method of the toothpaste of Claim 3,
The said fixing tool is a manufacturing method of the toothpaste which can rotate around the central axis of the said fixing tool. In the manufacturing method of the toothpaste of Claim 4,
The said fixing tool is a manufacturing method of the toothpaste which can rotate by the angular increment of 180 degrees / n (n is an integer greater than or equal to 2). In the manufacturing method of the toothpaste in any one of Claim 3 thru | or 5,
In the cutting step, the toothpaste manufacturing method for cutting the tip portion in a state where only the remaining portion of the paper shaft is accommodated in the fixture. In the manufacturing method of the toothpaste in any one of Claim 3 thru | or 5,
In the cutting step, the toothpaste manufacturing method for cutting the tip portion in a state where both the tip portion and the remaining portion of the paper shaft are accommodated in the fixture. In the manufacturing method of the toothpaste of Claim 7,
A portion of the fixing tool that covers the tip of the paper shaft is provided with a pair of slits that are provided at positions facing each other with the central axis of the fixing tool therebetween and extend in parallel to the central axis. A method of manufacturing toothpaste. In the manufacturing method of the toothpaste in any one of Claims 1 thru | or 8,
In the cutting step, a toothpaste manufacturing method for cutting the tip using a blade that moves in a plane including the central axis of the tip of the paper shaft. In the manufacturing method of the toothpaste of Claim 9,
The toothbrush is a method for manufacturing a toothpaste, wherein the blade is rotatable around an extension line of the central axis of the tip. In the manufacturing method of the toothpaste of Claim 10,
The toothbrush is a method for manufacturing a toothpaste, wherein the blade is rotatable at an angular increment of 180 ° / m (m is an integer of 2 or more). In the manufacturing method of the toothpaste in any one of Claims 1 thru | or 11,
The manufacturing method of a toothpaste including the process process which processes the rear-end part of the said paper shaft prepared in the said preparation process into a taper shape. In the manufacturing method of the toothpaste of Claim 12,
The said cutting process is a manufacturing method of the toothpaste performed after the said process process. In the manufacturing method of the toothpaste of Claim 12 or 13,
In the said process process, the manufacturing method of the toothpaste which processes the said rear-end part into a tapered shape by cutting the said rear-end part of the said paper shaft with a blade. In the manufacturing method of the toothpaste of Claim 12 or 13,
In the said process process, the manufacturing method of the toothpaste which processes the said rear-end part into a tapered shape by grinding the said rear-end part of the said paper shaft with an abrasive | polishing material. In the manufacturing method of the toothpaste of Claim 12 or 13,
In the said process process, the manufacturing method of the toothpaste which processes the said rear-end part into a taper-shape by pressing the said rear-end part of the said paper shaft against a type | mold. In the manufacturing method of the toothpaste in any one of Claims 1 thru | or 16,
A method for manufacturing a toothpaste comprising a shaping step of shaping the tip end portion of the paper shaft so that the extending directions of the plurality of filaments are aligned after the cutting step. In the manufacturing method of the toothpaste of Claim 17,
In the shaping step, the toothpaste manufacturing method for shaping the tip portion by passing the paper shaft from the rear end side of the paper shaft through a cylindrical shaping tool whose outlet diameter is smaller than the inlet diameter. . In the manufacturing method of the toothpaste in any one of Claims 1 thru | or 18,
A method for manufacturing a toothpaste comprising a forming step of forming a portion in the vicinity of the tip of the paper shaft into an arcuate shape. In the manufacturing method of the toothpaste of Claim 19,
The said shaping | molding process is a manufacturing method of the toothpaste performed after the said cutting process. In the manufacturing method of the toothpaste of Claim 19 or 20,
In the forming step, a method for manufacturing a toothpaste, wherein the vicinity portion of the paper shaft is pressed against a mold to form the vicinity portion into an arcuate shape.

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