JP5360880B2 - Roll paper holder and roll paper holder assembly set - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper roll holder having a small number of components and easily assembled and mounted. <P>SOLUTION: The paper roll holder including a paper cutter, a paper core supporting arm and a mounting base is formed by journaling the paper cutter turnably to a shaft part provided at the mounting base. The paper cutter has a bearing part of a circular arc shape with its end as an open end, and the shaft part surface of the mounting base is formed with a groove part for journaling the paper cutter by fitting the mounting base to the open end of the bearing part of circular arc shape, then turning it to the bearing part inner side, and pushing it into the bearing part. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a roll paper holder and a roll paper holder assembly set.

  Conventionally, a roll paper holder that rotatably holds a roll paper is attached to a wall surface in the vicinity of the toilet seat in the toilet (see, for example, Patent Document 1 (Japanese Patent Laid-Open No. 63-23630)).

  As illustrated in FIG. 14, in the conventional roll paper holder 101 (see FIG. 14F), when the components are assembled, first, an annular buffer member 109 is disposed on the bearing portion 107 of the paper cutter 102. Above (see FIG. 14A), the shaft portion 105 of the paper core support arm 103 is inserted into the bearing portion 107 (see FIG. 14B), and then the shaft portion 105 is screwed into the bearing portion 107. By stopping, the supporting arm is fixed to the paper cutter (see FIG. 14C) and assembled. When the roll paper holder is attached to the wall surface, the fixing device 106 (see FIG. 14C) is fixed to the fixing portion of the paper cutter and the supporting arm with a screw or the like, and then provided on the fixing device 106. The screw holes are used to screw onto the wall surface and attach (see FIGS. 14D and 14E).

  In this way, the roll paper holder 101 in which the paper cutter 102 is pivotally supported via the annular buffer member 109 is assembled and attached to the shaft portion 105 of the paper core support arm 103. Yes.

JP-A 63-23630

  As described above, the conventional roll paper holder has a technical problem that the number of components is large and the assembly process is complicated, resulting in an increase in manufacturing cost. In particular, as the component parts of the roll paper holder, metal parts made of stainless steel and the like are often used from the viewpoint of durability and aesthetics, but metal parts are generally difficult to form by complicated mechanical molding. For this reason, it is difficult to reduce the number of parts, and the above technical problem tends to become obvious.

  In addition, as shown in FIG. 14B or the like, as the support arm 103, when an L-shaped one end is an open end, the open end is directed to the right side in FIG. However, depending on the location and usage of the roll paper holder, there are cases where it is desired to mount the roll paper holder with the open end facing the opposite direction (the open end facing the left side of FIG. 14). In this case, after removing the screw fastened to fix the paper cutter 102 and the shaft portion 105 shown in FIG. 14C, the shaft portion 105 is pulled out, and then the shaft portion 105 shown in FIG. It is necessary to re-insert the shaft portion 105 into the bearing portion 107 from the direction opposite to the insertion direction (from the right side in FIG. 14B), screw it back, and fix the supporting arm 103 to the paper cutter 102 again. Therefore, there is a technical problem that the work at the time of attachment becomes complicated.

  Under such circumstances, an object of the present invention is to provide a roll paper holder and a roll paper holder assembly set that have a small number of components (components) and are easy to assemble and attach.

  In order to solve the above technical problem, the present inventor has intensively studied, and using a paper core supporting arm and a paper cutter having an arc-shaped bearing portion whose end is an open end. The mounting base has a shaft portion for pivotally pivoting the paper cutter, and the shaft base surface is fitted with the mounting base on the open end of the arc-shaped bearing portion, and then the bearing. By rotating the inside of the part and then pushing it into the bearing part, a groove formed to stop the paper cutter is used, and these paper core support arms, paper cutters, mounting bases, etc. It has been found that the above technical problem can be solved by forming a roll paper holder, and the present invention has been completed based on this finding.

That is, the present invention
(1) A roll paper holder including a paper cutter, a paper core support arm, and a mounting base, and wherein the paper cutter is pivotally fixed to a shaft portion provided on the mounting base. Because
The paper cutter has an arc-shaped bearing portion whose end is an open end,
On the surface of the shaft portion of the mounting base, after fitting the mounting base to the open end of the arc-shaped bearing portion, turning the bearing base inside, and then pushing into the bearing portion, A roll paper holder, characterized in that a groove portion for fixing the paper cutter is formed,
(2) The roll paper holder according to (1), wherein the mounting base includes a fixing portion of the supporting arm, and the supporting arm is fixed to the fixing portion of the mounting base.
(3) A roll paper holder assembly set including a paper cutter, a paper core support arm, and a mounting base,
The paper cutter has an arc-shaped bearing portion whose end is an open end,
The mounting base includes a shaft portion for pivotally locking the paper cutter and a fixing portion for fixing the support arm,
On the surface of the shaft portion of the mounting base, after the mounting base is fitted to the open end of the arc-shaped bearing portion, it is turned to the inside of the bearing portion, and then pushed into the bearing portion, A roll paper holder assembly set, characterized in that a groove portion for fixing the paper cutter is formed,
(4) The roll paper holder assembly set according to (3), in which the paper cutter is pivotally fixed to the mounting base so as to be temporarily assembled.
Is to provide.

  According to the present invention, the attachment base having a function as an attachment for fixing the paper cutter to the wall surface is further provided with a shaft portion for fixing the roll paper holder, and the attachment base is provided on the surface of the shaft portion. After the base is fitted to the open end of the arc-shaped bearing part provided at the end of the paper cutter, the groove part for pivoting the paper cutter by rotating it inside the bearing part and then pushing it into the bearing part is provided. By providing the roll paper holder and the roll paper holder set, the number of components (components) is small, and assembly and attachment are easy.

It is an example explanatory drawing of the roll paper holder of this invention. It is a figure explaining the component of the roll paper holder of this invention, or the structure of the roll paper holder set of this invention. It is a bearing part explanatory drawing of a paper cutter. It is an example explanatory drawing of the support arm of a paper core. It is explanatory drawing of an attachment base. It is a figure explaining the relationship between the width | variety of a paper cutter bearing part, and the size of an attachment base axial part. It is a figure explaining the assembly | attachment method to the attachment base of a paper cutter. It is a figure explaining the assembly | attachment method to the attachment base of a paper cutter. It is a figure explaining the assembly | attachment method to the attachment base of a paper cutter. It is a figure explaining the assembly | attachment method to the attachment base of a paper cutter. It is a figure explaining the method of assembling the support arm of a paper core. It is an example explanatory drawing of the roll paper holder of this invention. It is an example explanatory drawing of the roll paper holder of this invention. It is a figure explaining the assembly | attachment and attachment method of the conventional roll paper holder.

  First, the roll paper holder of this invention is demonstrated.

  The roll paper holder of the present invention includes a paper cutter, a paper core support arm, and a mounting base, and the paper cutter is pivotally supported on a shaft portion provided on the mounting base. The paper cutter has an arc-shaped bearing portion whose end is an open end, and the mounting base is mounted on the surface of the shaft portion of the mounting base. After being fitted to the open end of the arc-shaped bearing portion, the groove portion is formed to pivot the paper cutter by rotating to the inside of the bearing portion and then pushing into the bearing portion. It is.

  Hereinafter, the roll paper holder of the present invention will be described with reference to the drawings.

  As illustrated in FIGS. 1 and 2, the roll paper holder 1 of the present invention includes a paper cutter 2, a paper core support arm 3, and an attachment base 4.

  As schematically shown in FIG. 1, the roll paper holder 1 of the present invention has a structure in which a paper cutter 2 is pivotally supported by a shaft portion 5 provided on a mounting base 4. .

  In the roll paper holder 1 of the present invention, the paper cutter 2 has a cutter portion 9 and an arc-shaped bearing portion 7 whose end portion forms an open end 71 as shown in FIGS. 2 and 3.

  Although the shape of the cutter part 9 of the paper cutter 2 is not particularly limited, as shown in FIGS. 2 and 3, it may be curved, straight, or L-shaped. It may be bent. Further, since the roll paper is cut at the end portion of the cut portion 9, the thickness may gradually decrease toward the end portion, thereby forming a sharp shape in the end portion direction.

  As shown in FIGS. 2 and 3, in the roll paper holder 1 of the present invention, the paper cutter 2 has an arc-shaped bearing portion 7. As shown in FIG. 3A, the arc-shaped bearing portion 7 has a virtual cross-sectional diameter r corresponding to the cross-sectional diameter of the shaft portion 5 so as to be fixed to the shaft portion 5 of the mounting base 4 described later. The virtual sectional diameter r is preferably 7 to 21 mm, more preferably 7 to 16 mm, and even more preferably 7 to 11 mm. Moreover, it is preferable that the width w of the opening part of an arc-shaped bearing part is 3-20 mm, It is more preferable that it is 3-15 mm, It is further more preferable that it is 5-8 mm. As shown in FIG. 3 (b), in the axial vertical cross section of the arc-shaped bearing portion 7, the arc-shaped bearing portion 7 is arranged around the shaft portion 5 from the mounting portion 72 of the arc-shaped bearing portion toward the open end 71. Is formed to have a rotation angle α. The rotation angle α is preferably 181 to 270 °, more preferably 210 to 270 °, and further preferably 225 to 255 °.

  The size of the paper cutter 2 is not particularly limited, but is preferably about 80 to 130 mm in length and 114 to 140 mm in width. In the roll paper holder 1 of the present invention, the shape of the paper core support arm 3 is not particularly limited. However, as shown in FIG. 2, the roll paper holder 1 has a support portion 10 having an open end. Is appropriate. As shown in FIG. 2, the support portion 10 may be an L-shaped bent end portion that is an open end, or an arc-shaped bent end portion that is an open end. It may be.

  Further, the paper core support arm 3 may have a paper core support protrusion 20 as shown in FIG. 4A, and as shown in FIG. It may have a bellows portion 30.

  In the roll paper holder 1 of the present invention, the roll paper holder 1 of the present invention is mounted even when the paper core support arm 3 has the support portion 10 whose end is an open end. Therefore, the open end can be easily attached in either the left or right direction.

  Further, the paper core support arm 3 preferably has a contact fixing portion 11, and the support arm 3 can be fixed to the wall surface by screwing a screw into the screw hole 12 of the contact fixing portion. It is being conditioned. The contact fixing part 11 preferably has a structure fixed to a fixing part of the mounting base described later, and can be fitted to the mounting base 4 according to the shape of the mounting base 4. It has a shape, and the screw hole 12 of the contact fixing part is provided coaxially with the screw hole of the mounting base 4 to be described later, so that the fixing to the mounting base 4 and the fixing to the wall surface can be performed simultaneously. Those are more preferred.

  In the mode shown in FIGS. 2 and 4, if the screw is screwed into the screw hole 12 provided in the contact fixing portion 11, the supporting arm 3 can be fixed to the mounting base 4 and simultaneously fixed to the wall surface. By adopting such a structure, the number of components of the roll paper holder of the present invention can be reduced, and the operation of attaching the roll paper holder to the wall surface can be performed more easily.

  In the roll paper holder 1 of the present invention, as shown in FIG. 2, the mounting base 4 has a shaft portion 5 for pivotally locking the paper cutter 4 so that the mounting base 4 The shaft portion 5 is configured by fitting the mounting base to the open end 71 of the arc-shaped bearing portion 7 and then rotating the mounting base to the inner side of the bearing portion 7 and then pushing it into the bearing portion 7. A groove portion 8 for axially fixing the paper cutter 2 is formed.

  In the roll paper holder 1 of the present invention, the shaft portion 5 of the mounting base 4 is suitably 30 to 140 mm in axial length, more suitably 30 to 120 mm, 30 to 120 mm. More suitable is 80 mm. The length (cross-sectional diameter) R in the direction perpendicular to the axial direction of the shaft portion 5 is preferably 7 to 20 mm, more preferably 7 to 15 mm, and even more preferably 7 to 10 mm.

  In the roll paper holder 1 of the present invention, the mounting base 4 preferably has a fixing portion 6 for fixing the paper core support arm 3 as shown in FIGS. 2 and 5. 1 and FIG. 2, the contact fixing portion 11 of the paper core support arm 3 is screwed coaxially with the screw hole 12 provided in the support arm 3, as illustrated in FIGS. A screw hole that can be fitted, or a shape that can fit the supporting arm 3 is suitable.

  In the roll paper holder 1 of the present invention, the mounting base 4 is placed on the surface of the shaft portion 5 of the mounting base 4 as shown in FIGS. 2 and 5, and the open end 71 of the arc-shaped bearing portion 7. Then, the groove 8 that pivots the paper cutter 2 is formed by rotating it into the bearing 7 and then pushing it into the bearing 7.

  As illustrated in FIGS. 2 and 5, the groove 8 is preferably provided in the axial direction of the surface of the shaft 5 (direction parallel to the axis). By providing the groove portion 8 in the axial direction on the surface of the shaft portion 5, it is possible to easily perform a shaft fixing operation of the paper cutter 2 described later.

  The length in the longitudinal direction of the groove 8 is not particularly limited as long as the open end 71 of the arc-shaped bearing portion 7 of the paper cutter 2 can be fitted, but is suitably 30 to 140 mm. 120 mm is more appropriate, and 30 to 80 mm is more appropriate.

  The length in the longitudinal direction of the groove 8 (length in the direction perpendicular to the longitudinal direction) is also a length that allows the open end 71 of the arcuate bearing 7 of the paper cutter 2 to be fitted (the open end of the arcuate bearing 7). Is not particularly limited, but is suitably 1.5 to 15 mm, more suitably 2.5 to 10 mm, and 3.5 to 7 mm. It is even more appropriate.

  Further, as shown in FIG. 6B, the depth d of the groove portion 8 is also fitted to the open end 71 of the arc-shaped bearing portion 7 of the paper cutter 2 and rotated to the inner side of the arc-shaped bearing portion 7. Then, the depth is not particularly limited as long as it can be pushed into the bearing portion, but is preferably 1.5 to 10 mm, more preferably 1.5 to 5 mm, and 2.5 to 5 mm. It is even more appropriate to be.

  As described above, the arc-shaped bearing portion 7 of the paper cutter 2 has an opening portion having a width w (see FIG. 6A), and the shaft portion 5 having a cross-sectional diameter R has a groove portion having a depth d. 8 is provided (see FIG. 6B). Then, after the mounting base 4 is fitted to the open end 71 of the arc-shaped bearing portion 7, it is turned to the inside of the bearing portion (see FIG. 6 (c)) and then pushed into the bearing portion to thereby make the paper cutter 2 Is fixed to the shaft portion 5 of the mounting base 4, it is preferable that the opening width w, the groove diameter R, and the groove depth d satisfy the following relational expression.

That is, after fitting the mounting base 4 to the open end 71 of the arc-shaped bearing portion 7, the mounting base 4 is rotated to the inside of the bearing portion (see FIG. 6C), and then pushed into the bearing portion 7.
R−d ≦ w
It is appropriate to satisfy the relationship, and in order to axially stop the paper cutter 2 without the shaft portion 5 of the mounting base 4 pushed into the bearing portion 7 being detached from the bearing portion 7,
w <R
It is appropriate to satisfy the relationship.

  In the roll paper holder of the present invention, the paper cutter, the paper core support arm and the mounting base may be made of metal or resin, but the roll of the present invention As illustrated in FIGS. 2 to 4, the paper holder is particularly preferably made of metal since each component of the roll paper holder can have a relatively simple shape. More preferably, the paper cutter and the paper support arm are made of metal.

  As shown in FIGS. 1 to 2, the roll paper holder 1 of the present invention has a structure in which a paper cutter 2 is pivotally supported by a shaft portion 5 provided on an attachment base 4. When the paper is pulled out while the roll paper core is inserted into the support arm 3 during use, the paper cutter 2 swings while contacting and separating from the roll paper, and the roll paper pulled out to a desired position is removed from the cutter unit. 9 has a structure that can be cut.

  The roll paper holder of the present invention includes the paper cutter, a paper core support arm, and a mounting base, so that the number of components can be reduced and the roll paper holder can be easily assembled and mounted. Can be provided.

  Hereinafter, the assembly method and attachment method of the roll paper holder of this invention are demonstrated, referring drawings.

  As shown in FIG. 2, the roll paper holder 1 of the present invention includes a paper cutter 2, a paper core support arm 3, and an attachment base 4, and these are assembled. .

  At the time of assembling the roll paper holder of the present invention, the groove portion 8 provided on the surface of the shaft portion 5 of the mounting base 4 is fitted into the open end 71 of the arc-shaped bearing portion 7, and then the inner side of the bearing portion 7. Then, the paper cutter 2 is pivoted to the mounting base 4 by being pushed into the bearing portion 7.

  FIG. 7 shows an example in which the mounting base 4 is fitted to the open end 71 of the arc-shaped bearing portion 7 constituting the paper cutter 2. FIG. 7A is a perspective sectional view at the time of fitting, and FIG. 7B is a transverse sectional view at the time of fitting. In the example shown in FIG. 7, the arc-shaped bearing portion 7 of the paper cutter 2 is opened. The end 71 is fitted so as to hook the groove 8 of the mounting base 4.

  8, after fitting the groove portion 8 provided in the shaft portion 5 of the mounting base 4 to the open end 71 of the arc-shaped bearing portion 7 as described above, the mounting base 4 is connected to the bearing portion 7. An example in which the inner side is rotated is shown. 8A is a perspective sectional view during rotation, and FIG. 8B is a transverse sectional view during rotation. In the example shown in FIG. 8, the mounting base 4 is connected to the arc-shaped bearing portion 7. The open end 71 is used as a rotation shaft and is rotated to the inner side (upper side in the figure) of the bearing portion 7.

  FIG. 9 shows an example in which the mounting base 4 is pushed into the bearing portion 7 after rotating the mounting base 4 to the inside of the bearing portion 7 as described above. 9 (a) is a perspective sectional view when pushed in, and FIG. 9 (b) is a transverse sectional view when pushed. In the example shown in FIG. 9, the mounting base 4 is pushed into the bearing portion 7 on the right side of the figure. It is out.

  As described above, the virtual sectional diameter of the bearing portion 7 of the paper cutter 2 corresponds to the sectional diameter perpendicular to the axial direction of the shaft portion 5 of the mounting base 4. By pushing 4 into the inside of the bearing portion 7, as shown in FIG. 10 and the like, the paper cutter 2 can be rotated with the shaft portion 5 of the mounting base 4 as the rotation axis. In the state where the paper cutter 2 is attached to the wall surface by the mounting base 4, the open end 71 of the arc-shaped bearing portion 7 is on the surface of the shaft portion 5 of the mounting base 4 (cylindrical shape) in the rotation range of the paper cutter 2. Since the paper cutter 2 is always opposed to the shaft portion surface, the paper cutter 2 is detached from the shaft portion 5 of the mounting base 4 by the rotation of the paper cutter 2 having the shaft portion 5 as the rotation shaft after the paper cutter 2 is assembled. There is no.

  10A is a perspective cross-sectional view after the mounting base 4 is pushed into the bearing portion 7, and FIG. 10B is a cross-sectional view after the mounting base 4 is pushed into the bearing portion 7. is there.

  FIG. 11 is a perspective cross-sectional view showing an example of fixing the paper core support arm 3 to the mounting base 4. In the example shown in FIG. 11, the fixing portion of the mounting base 4 formed in advance in a predetermined shape. The roll paper holder 1 is formed by fixing the contact fixing part 11 of the supporting arm 3 formed in a shape corresponding to the fixing part 6 to the support fixing part 6.

  In the embodiment shown in FIG. 11, when the roll paper holder 1 is attached, it can be attached to the wall surface by screwing the screw into the screw hole 12.

  In the embodiment shown in FIG. 11, the shape of the fixing portion 6 of the mounting base 4 and the shape of the contact fixing portion 11 of the supporting arm 3 are not flat with each other, but are simply flat, and both are in contact during mounting. Then, by fixing the screw into the screw hole 12, the fixing base 4 and the supporting arm 3 may be fixed and attached to the wall surface at the same time.

  12 and 13 are diagrams illustrating another embodiment of the roll paper holder of the present invention.

  12, the shape of the supporting arm 3, the shape of the fixing portion 6 of the mounting base 4, the length of the shaft portion 8, and the like are different from those shown in FIG. The arm 3 is fitted to the mounting base 4 to form a roll paper holder, and the structure can be screwed to the wall surface by the screw hole 12 thereon.

  Moreover, the aspect shown in FIG. 13 differs from the aspect shown in FIG. 1 etc. in that the mounting base 4 is divided into a shaft stopper 4a and a fixture 4b, and the paper cutter 2 is attached to the shaft stopper 4a. The shaft stopper and the supporting arm 3 are attached to the fixture 4b and screwed to the wall surface by the fixture 4b.

  According to the roll paper holder of the present invention, the mounting base having a function as a fixture for fixing the paper cutter to the wall surface is further provided with a shaft portion for fixing the paper cutter, and the shaft portion is attached to the mounting base. After the base is fitted to the open end of the arc-shaped bearing provided at the end of the paper cutter, it is turned to the inside of the bearing, and then pushed into the bearing to provide a groove for pivoting the paper cutter. By providing, a roll paper holder with a small number of components and easy assembly and attachment can be obtained.

  Next, the roll paper holder assembly set of the present invention will be described.

  The roll paper holder assembly set of the present invention is a roll paper holder assembly set including a paper cutter, a paper core support arm, and a mounting base, and the end portion of the paper cutter is an open end. The mounting base has a shaft portion for pivotally supporting the paper cutter and a fixing portion for fixing the support arm, and On the shaft surface of the mounting base, the mounting base is fitted to the open end of the arc-shaped bearing portion, and then rotated to the inside of the bearing portion, and then pushed into the bearing portion, thereby A groove portion for fixing the paper cutter is formed.

  Examples of the paper cutter, the paper core support arm, and the mounting base are the same as those described above.

  The method for assembling and attaching the paper cutter, the paper core support arm, and the attachment base are the same as those described above.

  Since the roll paper holder assembly set of the present invention includes a paper cutter, a paper core support arm and a mounting base that are easy to assemble and attach, the roll paper holder can be easily attached to the wall surface. Can do.

  Moreover, the roll paper holder assembly set of the present invention is preferably one in which the paper cutter is in a temporarily assembled state by being pivotally fixed to the mounting base. Since the paper cutter is temporarily assembled with respect to the mounting base, the work at the time of mounting the roll paper holder can be made easier.

  In the roll paper holder assembly set of the present invention, it is preferable that the paper core support arm has a support portion 10 having an open end as shown in FIG. Even if the roll paper holder assembly set of the present invention includes the support arm 3 having the arm portion 10 having such an open end, the roll paper holder assembly set is opened by reversing the left and right at the time of attachment. The end can be easily arranged and attached in either direction.

  According to the roll paper holder assembly set of the present invention, the mounting base having a function as a fixture for fixing the paper cutter to the wall surface is further provided with a shaft portion for fixing the paper cutter, and the shaft portion After fitting the mounting base to the open end of the arc-shaped bearing portion provided at the end of the paper cutter, rotate it to the inside of the bearing and then push it into the bearing to By providing the groove to be stopped, it is possible to obtain a roll paper holder assembly set that has a small number of components and is easy to assemble and attach.

DESCRIPTION OF SYMBOLS 1 Roll paper holder 2 Paper cutter 3 Paper core support arm 4 Mounting base 5 Shaft part 6 Fixing part 7 Arc-shaped bearing part 8 Groove part 9 Cutter part 10 Support part 11 Contact fixing part 12 Screw hole 20 Supporting protrusion part 30 Support bellows portion 101 Roll paper holder 102 Paper cutter 103 Paper core support arm 105 Shaft portion 106 Fixing tool 107 Bearing portion

Claims (4)

A roll paper holder comprising a paper cutter, a paper core support arm, and a mounting base, wherein the paper cutter is pivotally supported on a shaft provided on the mounting base. ,
The paper cutter has an arc-shaped bearing portion whose end is an open end,
On the surface of the shaft portion of the mounting base, after fitting the mounting base to the open end of the arc-shaped bearing portion, turning the bearing base inside, and then pushing into the bearing portion, A roll paper holder, wherein a groove portion for fixing the paper cutter is formed.   The roll paper holder according to claim 1, wherein the mounting base includes a fixing portion of the supporting arm, and the supporting arm is fixed to the fixing portion of the mounting base. A roll paper holder assembly set including a paper cutter, a paper core support arm, and a mounting base,
The paper cutter has an arc-shaped bearing portion whose end is an open end,
The mounting base includes a shaft portion for pivotally locking the paper cutter and a fixing portion for fixing the support arm,
On the surface of the shaft portion of the mounting base, after fitting the mounting base to the open end of the arc-shaped bearing portion, turning the bearing base inside, and then pushing into the bearing portion, A roll paper holder assembly set, wherein a groove for axially stopping the paper cutter is formed.   The roll paper holder assembly set according to claim 3, wherein the paper cutter is in a temporarily assembled state by being pivotally fixed to the mounting base.

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