JP2018057820A - Paper roll holder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a paper roll holder including a delivery mechanism simplifying and facilitating delivery of a paper tip part, allowing a user to change a paper roll without being affected by the delivery mechanism, and simply and easily fixing the paper roll.SOLUTION: A paper roll holder 1 includes: an upper face plate 20 for covering an upper face of a paper roll; and side holders 11 and 12 located at both left/right ends of the paper roll. Holding parts 50 for rotatably holding the paper roll are provided on left/right facing surfaces of the side holders 11 and 12. The side holders 11 and 12 include, in the inside thereof, rotating mechanisms 40 that rotate in conjunction with the holding parts, hold inverse rotation force in the inverse direction of the rotating direction and, triggered by a prescribed operation, release the held inverse rotation force.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a paper roll holder that can easily and easily fix a roll of a paper roll and feed a paper tip.

  A toilet paper roll used for a toilet is held by a toilet paper holder, and generally has a structure in which the toilet paper is drawn from the upper side of the toilet paper roll held by the holder. After pulling out the desired amount of toilet paper, press the cover at the top of the holder with your finger and press and fix the toilet paper, and use the sharp or notched surface at the tip of the cover to cut it out in the width direction. .

  Next, if you want to draw out the desired amount of toilet paper, the paper tip remains on the underside of the cover, so lift the cover with one hand and pick the paper tip with your finger and pull it out. It will be.

  On the other hand, various toilet paper holders that enable delivery of the paper tip of toilet paper have been proposed, and there are those that perform feeding electrically, but as a power mechanism that does not rely on electricity, for example, the following Patent Literature 1 and Patent Literature 2 exist.

  As shown in FIG. 11, the toilet paper holder of Patent Document 1 shrinks the space between the lid and the toilet paper held by the elastic portion 101 by the pressing force of the lid when cutting the toilet paper, and interlocks with it. Then, the feeding portion 103 is lowered through the flexible portion 102, and when the paper is cut and the force is released, the space which has been pressed and shrunk is lifted by the elastic portion 101 to return to the original position, and the flexible portion is flexibly interlocked with it. The feeding portion 103 which does not resist the rotation direction when the paper is pulled out through the portion 102 but resists only the reverse rotation direction and feeds the paper moves upward to return to the original position. While sending out toilet paper.

  As shown in FIG. 12, the toilet paper holder of Patent Document 2 includes a cover C, a side holder H, an internal roll paper R, and a roll paper feed unit 105 with a handle-type lever attached to the cover C. The roll paper is sent out by the action of the spring spring for rotation return provided in the roll paper feed unit 105.

Japanese Patent Laying-Open No. 2005-144112 (paragraph [0019], FIG. 4) Japanese Patent Laying-Open No. 2015-12983 (paragraph [0011], FIG. 1)

  In a conventional toilet paper holder, a mechanism that enables feeding of the paper tip is provided in the holder body.

  In the case of Patent Document 1 having a feeding mechanism at a position where the toilet paper of the holder body is mounted, when the toilet paper is replaced, the elastic part 101, the flexible part 102 and the feeding part 103 are obstructed so that the smooth replacement is performed. I can't do it. In addition, there is no problem when the elastic part 101, the flexible part 102, and the delivery part 103 are supported by the toilet paper in the positional relationship shown in the figure, but when the toilet paper is replaced, the positional relationship is determined by their own weight. If the structure of the original positional relationship is not understood in the case of collapse, toilet paper replacement becomes difficult.

  Also, when replacing toilet paper, the toilet paper will be replaced with both hands while keeping the cover tilted upward with one hand, but it has a feed mechanism on the cover upper surface of the holder body In the case of Patent Document 2, the feeding mechanism on the upper surface of the cover becomes an obstacle, and if the hand is removed from the cover, the cover cannot be kept tilted upward, resulting in difficulty in replacing toilet paper.

  Moreover, like the toilet paper holder shown in patent document 1 and patent document 2, when the power generation source of the feeding mechanism and the toilet paper are in contact with each other, the toilet paper is likely to be damaged due to contact friction. Toilet paper is wasted.

  The present invention has been made in view of the above points, and includes a feeding mechanism that makes it easy and easy to feed the leading end of the paper, and the paper roll can be replaced without being influenced by the user. Provided is a paper roll holder that can be carried out and that makes fixing the paper roll simple and easy.

  In order to solve the above problems, the present invention provides the following.

  (1) A holding portion that has an upper surface plate that covers the upper surface of the paper roll and side holders that are positioned at both left and right ends of the paper roll, and that holds the paper roll rotatably on the left and right opposing surfaces of the side holder. A paper roll holding body provided with a reverse rotation force in a direction opposite to the rotation direction while rotating in conjunction with the holding portion inside the side holder, triggered by a predetermined operation A paper roll holder having a rotation mechanism for releasing the held reverse rotational force.

  According to the present invention, since the paper tip feeding mechanism is provided inside the side holder, the user is not affected by the feeding mechanism when replacing the paper roll, and the paper roll can be easily fixed. And can be made easy.

  In addition, the paper tip is fed in a rotating mechanism that rotates in conjunction with the holding portion, holds a reverse rotational force in the direction opposite to the rotational direction, and releases the reverse rotational force that is held in response to a predetermined operation. Therefore, it is possible for the user to realize the delivery without using a special operation as usual. The predetermined operation may be a part of the operation performed as usual.

  (2) The upper surface plate is provided with a first plate having a paper cutting blade for cutting the paper roll, and a second hole provided below the first plate and having a through-hole through which the paper cutting blade can be taken in and out. A paper roll holding device, wherein the paper cutting blade can be inserted and removed from the through hole by changing a relative positional relationship between the first plate and the second plate. body.

  According to the present invention, since the relative positional relationship between the first plate and the second plate constituting the upper surface plate is changed to allow the paper cutting blade to be taken in and out from the through hole, the paper cutting blade is normally used. Does not come out of the through hole, and the paper cutting blade comes out of the through hole at the time of use, so that it is possible to prevent an accident such as an accident that the user touches the paper cutting blade unexpectedly.

  (3) The upper surface plate or the second plate of the upper surface plate has, on its lower surface, a rotating portion that can rotate in conjunction with a paper roll, and an upper elastic portion that can swing the rotating portion up and down. 3. The upper plate or the second plate of the upper plate and the upper elastic portion are fixedly provided, and the rotating portion is held by the upper elastic portion. Paper roll holder.

  According to the present invention, in (1), since there is a rotating part that can rotate in conjunction with the paper roll on the lower surface of the upper surface plate, the friction between the upper surface plate and the paper roll can be reduced by the rotating portion, and smooth feeding Can be realized. In addition, according to the present invention, in (2), since the lower surface of the second plate of the upper surface plate has a rotating portion that can rotate in conjunction with the paper roll, the friction between the second plate of the upper surface plate and the paper roll. Can be reduced by the rotating part, and smooth feeding can be realized.

  (4) One or both of the side holders can be opened and closed left and right. A paper roll holder.

  According to the present invention, since the side holder can be opened and closed to the left and right, the paper roll can be easily and easily fixed by moving the side holder and replacing the paper roll. In particular, even if there is a holding portion located on the left and right opposing surfaces of the side holder, the paper roll can be easily and easily fixed without the holding portion becoming an obstacle.

(5) The paper roll holding body, wherein the holding portion is a hemispherical body that is inserted into the core of the paper roll.
(6) The paper roll holder, wherein the hemisphere has a number of notches directed toward the center on the spherical surface, and a tapered portion projecting from the spherical surface on the peripheral surface.

  According to the present invention, since the holding portion is inserted into the winding core of the paper roll as a hemisphere and has a large number of notches and tapered portions, the degree of adhesion without play that fits the winding core is realized. Can do. When the paper tip is sent out by the rotation mechanism, if there is play between the winding core and the holding part, the paper rotates idly and the feeding does not function. Therefore, the paper can be prevented from idling and reliable feeding can be realized.

(7) The casing that constitutes the rotation mechanism and includes a closed portion and an open portion on the rotation peripheral surface includes a cam portion that rotates in conjunction with the holding portion, and transmission interruption of rotation of the cam portion. A clutch portion that engages with the cam portion at the closed portion and transmits rotation, and is separated from the cam portion at the open portion and is blocked from rotating, and according to the rotation of the clutch portion. A winding elastic part that is wound in a wound direction, and the winding elastic part is energized with a reverse rotational force in a direction opposite to the rotational direction by power transmission from the cam part via the clutch part, A paper roll holder, wherein a reverse rotational force biased by a predetermined operation is released.
(8) Inside the side holder, a stopper that is located near the boundary between the closed portion and the open portion of the casing and protrudes from the inner wall of the side holder, the closed portion of the casing and the side holder And a lower elastic part that is swingable up and down, and the stopper restricts the reverse rotation of the clutch part by the wound elastic part and presses the lower elastic part A paper roll holder, wherein the restriction of the stopper is released by the action.

  According to the present invention, the feeding is realized by the configuration mode of the rotation mechanism and the configuration mode of the rotation mechanism and the side holder.

  The paper roll holder of the present invention is convenient for the user, and can easily and easily deliver the paper tip.

It is a front perspective view of the paper roll holding body which concerns on embodiment of this invention. It is a block diagram which shows the example of a rotation mechanism. It is the front perspective view and block diagram of a clutch part. It is a block diagram of a cam part. It is a figure for demonstrating the operation mechanism of the paper roll holding body which concerns on embodiment of this invention. It is a figure for demonstrating the operation mechanism of the paper roll holding body which concerns on embodiment of this invention. It is a figure which shows an example of a holding | maintenance part. It is a plane schematic diagram of the paper roll holding body which concerns on embodiment of this invention. It is a front schematic diagram of the paper roll holding body which concerns on embodiment of this invention. It is a figure which shows the other example of an upper surface board. It is a figure which shows the example of the conventional toilet paper holder. It is a figure which shows the example of the conventional toilet paper holder.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a front perspective view of the paper roll holder 1. A paper roll holder 1 that holds toilet paper, kitchen paper, or the like is positioned on a support plate 10 positioned on the rearmost surface, side holders 11 and 12 positioned on the left and right ends of the support plate 10, and on the upper side of the support plate 10. The upper plate 20 and the uppermost plate 30 located on the upper side of the upper plate 20 are configured.

  The paper roll holder 1 includes a support plate 10 and side holders 11 and 12 formed in parallel to the front and perpendicular to the support plate 10. A toilet paper roll (not shown) is pivoted through the support 50 with the inner plates 11b and 12b of the holders 11 and 12 as opposed surfaces. A gap is formed between the outer plates 11a and 12a and the inner plates 11b and 12b of the side holders 11 and 12, and the rotation mechanisms 40 are accommodated inside the side holders 11 and 12, respectively.

  In FIG. 1, the inner plates 11 b and 12 b of the side holders 11 and 12 are provided with cut portions 11 c and 12 c that are formed integrally with the gap to facilitate the insertion and removal of the rotating mechanism 40. Further, the outer plates 11 a and 12 a of the side holders 11 and 12 are provided with support portions (not shown) for receiving and supporting the rotation shaft of the rotation mechanism 40 or for supporting the rotation mechanism 40. Moreover, the support plate 10 is attached to the wall surface of a toilet or the like.

  The upper surface plate 20 covers the upper surface of a toilet paper roll (not shown) and is pivotally supported by a support shaft and a support plate 10 that are supported to be rotatable up and down. The upper surface plate 20 has an arc shape having a smooth curved surface when viewed from the side surface corresponding to the outer peripheral surface of a toilet paper roll (not shown). The front end surface of the upper surface 20a and the lower surface 20b of the upper surface plate 20 is a sharp or comb-shaped paper cutting blade 20c, and the toilet paper roll is cut in the width direction by the paper cutting blade 20c. The upper surface 20a of the upper surface plate 20 is provided with a contact portion 22 that contacts and interlocks with the uppermost surface plate 30, and the lower surface 20b of the upper surface plate 20 is an elongated shape that can rotate in conjunction with a toilet paper roll (not shown). A rod-like rotating part 21 is provided. The rotating part 21 is held by a spring spring of an upper elastic part 23 fixed to the upper surface plate 20, and the upper elastic part 23 can swing the rotating part 21 up and down.

  The uppermost plate 30 covers the upper surfaces of the side holders 11 and 12 and is pivotally supported by a support shaft 10 and a support plate 10 that are supported so as to be rotatable up and down. When the upper surface plate 20 is rotated upward, the upper surface plate 30 is also contacted with the contact portion 22 and rotated together with the upper surface plate 30. When the upper surface plate 20 is rotated downward in this state, the upper surface plate 20 is contacted with the contact portion 22. 30 is also interlocked and rotated downward.

  2A and 2B are diagrams illustrating an example of the rotation mechanism 40, in which FIG. 2A is a front perspective view, and FIG. 2B is a schematic cross-sectional view. The rotating mechanism 40 is joined by a U-shaped casing 41 and a lid 42, and the rotating peripheral surface of the casing 41 is formed by a closed portion 41a and an opened portion 41b. The inside of the rotation mechanism 40 can be seen from the opening part 41b.

  A spring spring as a lower elastic portion 43 is provided on the lowermost peripheral surface of the rotation mechanism 40 and is supported by the lower plates 11c and 12c of the side holders 11 and 12, and the rotation mechanism 40 is moved up and down by the lower elastic portion 43. It can swing.

  In the rotating mechanism 40, a rotating shaft 44 that rotates the toilet paper roll in a forward and reverse manner is mounted on a bearing 45 of the housing 41, and the other end of the rotating shaft 44 protrudes from the lid 42 and a holding unit 50 is attached.

  The housing 41 accommodates a gear-like cam portion 46, a clutch portion 47, and a wound elastic portion 48 that rotate about the rotation shaft 44, and is rotated in the rotational direction by the action of the spiral spring of the wound elastic portion 48. The reverse rotational force in the opposite direction is retained, and the retained reverse rotational force is released. A convex stopper 49A on the inner surface side of the casing 41 and a convex shape on one side surface of the clutch portion 47 are provided to prevent the reverse rotation force from being excessively reversed due to the spring force when releasing the retained reverse rotational force. A stopper 49B is fixed, and rotation and reverse rotation are restricted by the stopper 49A and the stopper 49B coming into contact with each other.

  The cam portion 46 always rotates in conjunction with the holding portion 50 via the rotation shaft 44. Further, the winding elastic part 48 is attached to one side surface of the clutch part 47 and is wound according to the rotation of the clutch part 47. On the other hand, the clutch portion 47 can transmit and block the rotation of the cam portion 46 so that the rotation of the cam portion 46 is not transmitted to the winding elastic portion 48 as it is.

  3A is a front perspective view of the rotating body 47A of the clutch portion 47, and FIG. 3B is a configuration diagram showing the clutch mechanism 47B of the clutch portion 47. As shown in FIG. As for the external structure of the rotating body 47A, a gap 47b is formed from a part of the circumferential surface 47a of the thick disk to the opposite surface, and one side 47c of the thick disk is integrated with the gap 47b. A notch 47e is formed. Further, the thick discs 47c and 47d are formed with through holes 47e that are integral with the gap 47b and pass through the rotary shaft 44. A wound elastic portion 48 is attached to the other side surface 47d of the thick disk.

  A clutch mechanism 47B is accommodated in the gap 47b. The elongated plate-like clutch mechanism 47B has a weight 47B3 fixed at one end in the longitudinal direction between the side walls 47B1 and 47B2, and a rotating wheel 47B5 and a rotating shaft that can rotate around the rotating shaft 47B4 at the other end in the longitudinal direction. A pin portion 47B6 protruding along 47B4 is integrally provided.

  In a state where the rotating body 47A and the clutch mechanism 47B are assembled, the pin portion 47B6 protrudes from the notch portion 47e, and the pin portion 47B6 moves up and down in the notch portion 47e by the weight of the weight 47B3.

  FIG. 4 is a diagram showing the cam portion 46, which is constituted by an uneven gear. A through hole through which the rotating shaft 44 is inserted is formed in the center of the cam portion 46.

  5 and 6 are diagrams for explaining the operation mechanism of the paper roll holder 1 according to the embodiment of the present invention.

  The operation outline shown in FIG. 5 will be described. In the state where the toilet paper roll R is pulled out, the rotating portion 21 which is in contact with the toilet paper roll R is also rotated in conjunction with it (FIG. 5A). When the upper elastic part 23 is pressed downward by hand to shrink the upper elastic part 23 (FIG. 5B) and the hand that has been pressing the upper surface plate 20 is released, the upper surface plate 20 moves upward by the restoring force of the upper elastic part 23. At the same time, the toilet paper roll R rotates in the reverse direction (FIG. 5C), and the reverse rotation stops with the tip of the toilet paper roll R peeled off from the roll surface (FIG. 5D).

  As shown in FIG. 5B, in the state where the toilet paper roll R is torn off, it is important that the roll surface is separated from the leading end to be torn off. The closer the roll surface and the front end to be cut, the more inconvenient it becomes in FIG.

  FIG. 6 is a cross-sectional view schematically showing an operation mechanism of the toilet paper roll R and the rotation mechanism 40. The operation outline shown in FIG. 6 will be described. Before the start of use, the end of the toilet paper roll R is peeled off from the roll surface (FIG. 6 (a)), which is the same as the state shown in FIG. 5 (d). The rotating wheel 47B5 is in contact with the closed portion 41a, and the pin portion 47B6 and the cam portion 46 are engaged.

  When the toilet paper roll R is pulled out, the rotating wheel 47B5 rotates while sliding on the closed portion 41a, and the pin portion 47B6 and the cam portion 46 are engaged to transmit the rotation to the rotating body 47A (see FIG. 6 (b)), which is the same as the state shown in FIG. The winding elastic portion 48 is wound by the rotation of the rotating body 47A, and a reverse rotational force in a direction opposite to the rotation direction is urged to the winding elastic portion 48.

  When the toilet paper roll R is further pulled out, the rotating wheel 47B5 rotating while sliding on the closed portion 41a reaches the opening portion 41b, the rotating wheel 47B5 jumps out to the opening portion 41b, and the pin portion 47B6 The cam portion 46 is separated from the rotation of the rotating body 47A (FIG. 6C). Even if the toilet paper roll R is further pulled out in this state, the rotating body 47A does not rotate, and the wound elastic portion 48 does not rotate, so that a so-called idle state is obtained. Further, since the reverse rotational force biased by the winding elastic portion 48 is physically restricted by the rotating wheel 47B5 and the stoppers 11d and 12d, the winding elastic portion 48 maintains the reverse rotational force. It will be in the state.

  After pulling out the desired amount of toilet paper roll R, in a state where the upper surface plate 20 is pressed downward by hand and is torn off, the rotating mechanism that supports the rotating portion 21 and the toilet paper roll R by the action of pressing the upper surface plate 20 Is pressed downward. At this time, the relative distance between the stoppers 11d and 12d fixed to the side holders 11 and 12 and the rotary wheel 47B5 is released, the restriction is released, the reverse rotational force of the wound elastic portion 48 is released, and the pin The part 47B6 and the cam part 46 are engaged to transmit the rotation with the rotating body 47A, and the rotary wheel 47B5 rotates while sliding on the closed part 41a (FIG. 6D). This is the same as the state shown in FIG. After the reverse rotational force of the wound elastic portion 48 is released, the state returns to the state shown in FIG.

  FIG. 7 is a diagram illustrating an example of the holding unit 50. The holding part is a hemispherical body, and is inserted into the roll core of the toilet paper roll so that there is no play between the roll core and the holding part. In order to bring the winding core and the holding part into close contact with each other, it is preferable that the holding part 50 is made of a material that is elastic and does not slip, and the holding part 50 has a spherical surface by forming a large number of notches 51 toward the center. It is possible to accommodate various sizes of winding cores. Further, by forming the tapered portion 52 protruding from the spherical surface on the peripheral surface of the holding portion 50, the winding core and the holding portion 50 can be hooked and more closely attached. Note that the holding unit 50 may have an axis 53 that can be connected to the rotation shaft 44 of the rotation mechanism 40 so that the holding unit 50 can be attached and detached.

  FIG. 8 is a schematic plan view of the paper roll holder 1 according to the embodiment of the present invention. A claw-shaped contact portion 22 that contacts and interlocks with the top surface plate 30 is provided on the top surface of the top surface plate 20. When the top surface plate 20 is rotated upward, the top surface plate 30 contacts and contacts the top surface plate 30. When the upper surface plate 20 is rotated downward in this state, the upper surface plate 30 is also rotated downward in conjunction with the contact portion 22.

  FIG. 9 is a schematic front view of the paper roll holder 1 according to the embodiment of the present invention. The top plate 30 is L-shaped with a U-shaped surface 30c and a rectangular surface 30d, the side holder 12 can be opened and closed left and right, a stopper 60 is provided on the upper surface of the side holder 12, and the rectangular surface 30d The contact with the stopper 60 prevents the side holder 12 from opening too much.

  Further, the side holder 11 can also be opened and closed to the left and right, but the side holder 11 is fixed by a book guard 70. When attaching the toilet paper roll, it is sufficient to widen the interval between the holding portions 50. However, if both the side holders 11 and 12 are opened and closed, it takes time to install, so if one of the side holders 11 and 12 can be opened and closed. Good.

  The procedure for attaching the toilet paper roll is as follows. When the upper surface plate 20 is raised, the uppermost surface plate 30 is grasped by the contact portion 22 and the upper surface plate 20 and the uppermost surface plate 30 are moved upward. The side holder 12 is opened in the right direction and is caught by the stopper 60 at a predetermined position. The roll of the toilet paper roll is put into the holding part 50 on the side holder 11 side and is brought into close contact with the holding part 50. The side holder 12 is returned to the original position, and the roll core of the toilet paper roll is put into the holding part 50 on the side holder 12 side and is brought into close contact with the holding part 50. Lower the top plate 20 and the top plate 30 downward.

  FIG. 10 is a diagram showing another example of the upper surface plate, and the upper surface plate is provided below the first plate 80b, the first plate 80b having a paper cutting blade 80a for cutting the paper roll, and the paper cutting blade. And a second plate 81b having a through hole 81c in which 80a can be taken in and out. The through hole 81c is formed at the lower end of the side wall 81a formed upright from the second plate 81b and the second plate 81b. The configuration and mechanism are the same as those described above except for the top plate.

  (A) has shown the front view (left of a figure) and side view (right of a figure) in the normal time when a user does not operate a toilet paper roll holding body, and the paper cutting blade 80a is inside the through-hole 81c. Contained. (B) has shown the front view (left of figure) and the side view (right of figure) at the time of use when a user operates a toilet paper roll holding body and tears away a toilet paper roll, and the through-hole 81c The paper cutting blade 80a protrudes outside.

  The relative positions of the first plate 80b and the second plate 81b can be changed by installing the first plate 80b that can be moved up and down above the fixed second plate 81b. The first plate 80b and the second plate 81b are installed using an elastic member such as a spring or a member that exerts a pressing / separating action. In FIG. 10, the first plate 80b and the second plate 81b are in contact with each other. The position is a fulcrum.

  The paper roll holding body according to the present invention is industrially useful as a means for delivering the paper tip.

DESCRIPTION OF SYMBOLS 1 Paper roll holder 10 Support plate 11,12 Side holder 20 Upper surface plate 30 Top surface plate 40 Rotating mechanism 41 Case 42 Lid 43 Lower elastic part 44 Rotating shaft 45 Bearing 46 Cam part 47 Clutch part 48 Winding elastic part 50 Holding part 51 Notch 52 Taper 53 Axle 60 Stopper 70 Opening Stopper 80a Paper Cutting Blade 80b First Plate 81a Side Wall 81b Second Plate 81c Through-hole

Claims (8)

An upper plate covering the upper surface of the paper roll;
Side holders located on the left and right ends of the paper roll,
Have
On the left and right opposing surfaces of the side holder, a paper roll holding body provided with a holding portion that rotatably holds the paper roll,
A rotation mechanism inside the side holder that rotates in conjunction with the holding portion, holds a reverse rotational force in a direction opposite to the rotational direction, and releases the reverse rotational force held by a predetermined operation. A paper roll holder characterized by having. The upper surface plate includes a first plate having a paper cutting blade for cutting a paper roll, a second plate provided below the first plate, and having a through-hole through which the paper cutting blade can be taken in and out, Consists of
The paper roll holder according to claim 1, wherein a relative positional relationship between the first plate and the second plate is changed to allow the paper cutting blade to be taken in and out from the through hole. The upper plate or the second plate of the upper plate has a rotating part that can rotate in conjunction with a paper roll on the lower surface, and an upper elastic part that can swing the rotating part up and down,
The paper roll according to claim 1 or 2, wherein the upper plate or the second plate of the upper plate and the upper elastic portion are fixed, and the rotating portion is held by the upper elastic portion. Holding body.   The paper roll holder according to any one of claims 1 to 3, wherein one or both of the side holders can be opened and closed left and right.   The paper roll holder according to any one of claims 1 to 4, wherein the holding part is a hemisphere inserted into a core of the paper roll.   6. The paper roll holder according to claim 5, wherein the hemisphere has a plurality of notches directed toward the center on a spherical surface thereof, and a tapered portion projecting from the spherical surface on a circumferential surface thereof. The casing that constitutes the rotating mechanism and has a closed portion and an open portion on the rotating peripheral surface,
A cam portion that rotates in conjunction with the holding portion;
A clutch portion that enables transmission of rotation of the cam portion to be interrupted, is engaged with the cam portion in the closed portion to transmit rotation, and is separated from the cam portion in the open portion and blocked from rotating; ,
A winding elastic part wound according to the rotation of the clutch part;
Is housed,
The winding elastic portion is energized with a reverse rotational force in a direction opposite to the rotational direction by power transmission from the cam portion via the clutch portion, and a reverse rotational force biased by a predetermined operation as a trigger. The paper roll holder according to any one of claims 1 to 6, wherein the paper roll holder is discharged. Inside the side holder,
A stopper located near the boundary between the closed portion and the open portion of the housing and protruding from the inner wall of the side holder;
A lower elastic portion provided between a closed portion of the housing and a lower portion of the side holder and swingable up and down;
Is provided,
The stopper restricts the reverse rotation of the clutch portion by the wound elastic portion,
The paper roll holder according to claim 7, wherein the restriction of the stopper is released by the pressing action of the lower elastic portion.

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