JP5669505B2 - Roll paper towel dispenser - Google Patents

Description

  The present invention relates to a dispenser for a roll paper towel obtained by winding a belt-shaped paper towel into a roll.

The roll paper towel dispenser has a support mechanism that rotatably supports the roll paper towel inside the housing, and a paper outlet that is unwound from the roll paper towel attached to the support mechanism is provided at the bottom of the housing. Thus, the necessary length can be appropriately drawn out and cut.
As for the paper discharge mechanism, a paper discharge roller that nips a paper towel unwound from a roll paper towel according to a sensor is driven by power to automatically discharge the appropriate length (for example, Patent Document 7 below). There is known a type in which the paper towel is pulled out and pulled out appropriately.
For the one that automatically ejects the appropriate length automatically by the former sensor, the roll that is held inside is small compared to the type in which the user pulls out the paper towel as long as possible. There is a merit that paper towels are good and can be replaced less frequently.
However, there is a problem that power consumption must be taken into account when the paper is automatically discharged appropriately as long as the rollers for paper discharge are driven by power. In particular, such a dispenser is often installed near the washstand in the restroom or near the water in the kitchen, and there may be no commercial power supply in such a place. In battery drive, power saving is a very important issue.

On the other hand, as shown in FIG. 14, the conventional dispenser X <b> 2 is configured to loosely fit the protrusions 135, 135 to the openings on both ends of the paper tube 121 of the roll paper towel 102 as a support mechanism for rotatably supporting the roll paper towel 102. I support it. That is, the paper tube 121 is supported only by being placed on the protrusions 135 and 135 in a free state.
The support in this state is such that there is a large gap between the paper tube 121 and the protrusion 135, so that the roll paper towel 102 flutters when the roll paper towel 102 rotates as the roll paper towel 102 is discharged. Paper towels may be pulled in the opposite direction.
Therefore, in the dispenser that automatically discharges the appropriate length as described above, a load is applied to the discharge roller that nips the paper towel unwound from the roll paper towel at this time, and unnecessary power may be consumed.
In addition, in a dispenser that automatically discharges a suitable length, quick discharge is desired. However, in order to improve the discharge speed in the conventional dispenser, the above-described fluttering is promoted by increasing the rotation speed of the discharge roller. Consumption will increase further.
Furthermore, this type of paper towel dispenser is primarily intended to supply paper towels for wiping wet hands. Therefore, the hand may be wet when all the roll paper towels held in the dispenser are unwound. In the conventional dispenser X2, when replacing the roll paper towel, it was necessary to directly replace the roll paper towel with the body around which the paper was wound, so that the paper was wetted unnecessarily when the roll paper towel was replaced. There were also drawbacks.
Also, the installation location does not always have enough space. For example, in a narrow work place, the dispenser is not always installed in a place where you can work with both hands, such as a hollow in the wall. Sometimes it was necessary.

JP2010-068972 JP2007-190292 JP 09-215628 A JP 2006-068345 A JP2007-222372 JP 2002-102105 A Special table 2008-521549

  Therefore, the main problem of the present invention is that the roll paper can be discharged by electric power that reduces power consumption and allows replacement without directly touching the body of the roll paper towel, while being a simple mechanism. It is to provide a dispenser for a roll paper towel that performs paper.

The present invention that has solved the above problems is as follows.
<Invention of Claim 1>
A support mechanism for supporting the roll paper towel inside the housing, a paper discharge roller for discharging the paper towel unwound from the roll paper towel, and a paper towel fed out by rotation of the paper discharge roller for exposing the paper towel outside the housing A roll paper towel dispenser, wherein the paper discharge roller is rotationally driven by electric power.
This dispenser for roll paper towel is used for a roll paper towel in which a long belt-shaped paper towel is wound around a paper tube and the paper tube protrudes from at least one end surface of a cylindrical portion formed by winding the paper towel. ,
The roll paper towel support mechanism comprises a pair of support parts that support the roll paper towel on the side of the housing,
One of the pair of support portions, have a receiving portion for supporting the cylindrical surface of the projecting portion of the paper tube rotatably, the other of the pair of support portions, the air-core portion without paper tube or paper tube A roll paper towel dispenser characterized by having a convex part that is loosely inserted into the roll paper towel.

<Invention of Claim 2>
A support mechanism for supporting the roll paper towel inside the housing, a paper discharge roller for discharging the paper towel unwound from the roll paper towel, and a paper towel fed out by rotation of the paper discharge roller for exposing the paper towel outside the housing A roll paper towel dispenser, wherein the paper discharge roller is rotationally driven by electric power.
This dispenser for roll paper towel is used for a roll paper towel in which a long belt-shaped paper towel is wound around a paper tube, and the paper tube protrudes from one end surface of a cylindrical portion formed by winding the paper towel,
A part of the cylindrical tube around which the paper towel is wound is inserted into the other end surface where the paper tube does not protrude, and a supporting member is protruded from the other end surface;
The roll paper towel support mechanism comprises a pair of support parts that support the roll paper towel on the side of the housing,
One of the support portions is a receiving portion that rotatably supports the cylindrical surface of the protruding portion of the paper tube, and the other is a portion that protrudes from a cylindrical portion formed by winding the paper towel of the supporting member. The receiving portion is configured to receive the protruding portion of the paper tube and the portion protruding from the cylindrical portion around which the paper towel of the supporting member is wound by each receiving portion so as to be rotatably supported. A roll paper towel dispenser characterized by that.

<Invention of Claim 3>
The roll paper towel dispenser according to claim 1 or 2, wherein the receiving portion has a circular arc surface or a semi-cylindrical surface.

<Reference invention 1>
A support mechanism that supports the roll paper towel inside the housing, a pair of paper discharge rollers that nip the paper towel that has been unwound from the roll paper towel, and the paper towel that has been discharged through the paper discharge roller are exposed outside the housing. A paper discharge port to be driven, and the paper discharge roller is driven by electric power,
The support mechanism is composed of a pair of support portions that support the paper tube on the side of the housing,
At least one of the support portions has a receiving portion that rotatably supports the cylindrical rod-shaped body, and is a roll paper towel used in a dispenser for roll paper towel,
A roll characterized in that a long strip-shaped paper towel is wound around a paper tube, and the paper tube protrudes from at least one end surface of a cylindrical portion formed by winding the paper towel so as to fit into the receiving portion. Paper towel.

<Reference invention 2>
A method of manufacturing a roll paper towel in which a long strip-shaped paper towel is wound around a paper tube, and the paper tube protrudes from at least one end surface of a cylindrical portion formed by winding the paper towel,
Slitting a long paper tube sharing one mandrel to form a group of connected paper tubes sharing the mandrel; and
Unwinding the paper towel base paper from a roll roll on which a paper towel base paper having a width equal to or more than the width of the paper towel is wound, and slitting the unrolled paper towel base paper into the paper towel width; and
A roll paper towel group that is connected while sharing a part of the paper tube, wrapping the paper towel base paper around the paper tube group in a state protruding from one side of the width direction of the paper towel base paper slit at one end of the paper tube group A winding process to be formed;
A separation step of separating the roll paper group into each roll paper towel;
A method for producing a roll paper towel, comprising:

  According to the present invention as described above, a roll paper towel is a simple mechanism that consumes less power and can be replaced without directly touching the body of the roll paper towel. Dispenser is provided, and the roll paper towel used for the roll paper dispenser is provided by the reference invention.

It is a front view of the dispenser for roll paper towels of this invention. It is a side view of the dispenser for roll paper towels of this invention. It is a figure for demonstrating the support mechanism and discharge mechanism of the dispenser for roll paper towels of this invention. It is explanatory drawing of the roll paper towel used for the dispenser for roll paper towels of this invention. It is another figure for demonstrating the support mechanism and discharge mechanism of the dispenser for roll paper towels of this invention. It is a figure for demonstrating the support part and receiving part of the dispenser for roll paper towels of this invention. It is a figure for demonstrating the support part and convex part of the dispenser for roll paper towels of this invention. It is another figure for demonstrating the support part and convex part of the dispenser for roll paper towels of this invention. It is a figure for demonstrating the member for attachment of the dispenser for roll paper towels of this invention. It is a figure for demonstrating the usage method of the member for attachment. It is another figure for demonstrating the paper discharge mechanism of the dispenser for roll paper towels of this invention. It is a figure for demonstrating the attachment (exchange) aspect of the roll paper of the dispenser for roll paper towels of this invention. It is a figure for demonstrating the manufacturing method of the roll paper towel used for the dispenser for roll paper towels of this invention. It is a figure for demonstrating the support aspect of the roll paper in the dispenser for roll paper towels of the conventional dispenser.

Next, an embodiment of the present invention will be described in detail below with reference to FIGS.
The roll paper dispenser X1 of this embodiment (hereinafter also simply referred to as dispenser X1) winds a long strip of paper towel used for wiping skin such as hands and face, drips of ingredients, and moisture etc. around a paper tube. A roll paper towel dispenser.

  As shown in FIGS. 1 to 3, the dispenser X1 has a housing 1 whose material is a synthetic resin such as ABS resin or a metal material, and a roll paper towel 2 (hereinafter, referred to as “inside”). A support mechanism that supports the roll paper towel 2 in a rotatable manner, and a paper discharge roller 4 that rotates in a state where the paper towel 20 that is the free tip of the roll paper towel 2 unwound from the roll paper towel 2 is nipped, A paper discharge port 5 for exposing the paper towel 20 fed out by the rotation of the paper discharge roller 4 to the outside of the housing is provided, and the paper discharge roller 4 is rotationally driven by a power driving source such as a motor.

"Roll paper towel"
First, the roll paper towel used for the dispenser X1 according to the present invention will be described. The dispenser X1 according to the present invention uses a characteristic roll paper 2 as particularly shown in FIG. The roll paper 2 used in the dispenser according to the present invention has at least one end face of a cylindrical portion 22 in which a long strip-shaped paper towel is wound around a cylindrical paper tube 21 and the paper tube 21 is wound around a paper towel. It protrudes from 22L. In the dispenser X1 according to the present invention, the problem solving / objective of the present invention such as power saving is achieved by supporting the protruding portion 21P of the paper tube 21 of the roll paper 2 so as to be supported. Details will be described later.

The paper tube itself can adopt a conventionally known paper tube configuration. Further, the outer diameter of the paper tube can be a general diameter used for this type of roll paper towel. To describe a specific example, the outer diameter is 30 to 45 mm. The outer peripheral surface is preferably smooth in the present invention. The material can be exemplified by coated cardboard, and the structure can be exemplified by a structure in which a long paper tube base paper is wound. The basis weight of the paper tube is preferably 500 to 900 g / m ² from the viewpoint of maintaining strength and not being crushed when the protruding portion is grasped by hand. In addition, the paper tube is usually formed by laminating two to three paper tube base papers in a spiral shape, and the basis weight here means the total of the US basis weights of the paper tube base papers.

  On the other hand, in the illustrated roll paper 2, the paper tube 21 is offset to the side protruding from the cylindrical portion 22 (reference numeral 21 </ b> L side in the illustrated example), and the core on the opposite side of the cylindrical portion 22 from the paper tube protruding side. In this example, the paper tube 21 is not present in the portion, but it is not always necessary to do this. Even if the paper tube extends to the end surface of the cylindrical portion 22 opposite to the paper tube protruding side, Good. In the present invention, the paper tube 21 only has to protrude from one end face of the cylindrical portion 22.

  On the other hand, the size of the cylindrical portion 22 of the roll paper 2, that is, the diameter L1 and the width L2 can be the size of a known roll paper towel. Specifically, the diameter L1 is about 110 to 250 mm, and the width L2 is about 150 to 310 mm. If the diameter L1 is less than 110 mm, it will be difficult to roll a sufficiently thick paper for the required length. On the other hand, if it exceeds 250 mm, it is difficult to make the dispenser compact and it is not desirable because it increases the weight and burden on the support mechanism. Further, if the width L2 is less than 150 mm, it is difficult to obtain a paper width necessary for wiping, and if it exceeds 300 mm, it is difficult to obtain a compact dispenser. In particular, in the roll paper X1 according to the present invention, since the paper tube 21 protrudes from one end of the cylindrical portion 22, the compactness of the dispenser is extremely deteriorated when the width exemplified above is exceeded.

  Here, the protruding length L3 of the paper tube 21 in the roll paper 2 according to the present invention is preferably about 10 to 15% of the width of the cylindrical portion 22. As a concrete numerical value, it is good to set it as 15-45 mm. Within such a range, the roll paper 2 can be sufficiently supported by the support mechanism described later, and the paper width can be made suitable for the use surface without deteriorating the compactness of the dispenser. .

In addition, the raw material of the crepe paper which comprises a paper towel, a raw material, a physical property, etc. are not limited in this invention. A conventionally well-known thing can be suitably employ | adopted in the range which does not inhibit the effect of this invention.
Further, the side from which the paper tube is projected is an appropriate design matter and is not limited in the present invention.

In addition, the raw material of a crepe paper which comprises the paper towel 20, a raw material, a physical property, etc. are not limited in this invention. A conventionally well-known thing can be suitably employ | adopted in the range which does not inhibit the effect of this invention. Preferred specific examples are as follows.
The paper towel which is a constituent material of the roll paper according to the present invention can be produced using only virgin pulp, waste paper pulp, or a mixture thereof as a stock. When used paper pulp is used, 100% used paper pulp or virgin pulp may be blended. Although the kind of pulp fiber is not particularly limited, it is preferable to use softwood pulp in an amount of 60 to 100% by weight, particularly preferably 80 to 100% by weight, and a remaining amount of hardwood pulp. By making high-blend hardwood pulp with short fibers, the influence of fiber orientation is reduced, and the paper towel exposed from the paper discharge port can be torn easily and densely.

Although the basis weight of the paper towel can be 15~65g / m ² about, among them the basis weight thereof is preferably thick 30 to 60 g / m ^2, in particular basis weight preferably from 30 to 50 g / m ² .
Moreover, it is preferable that the aspect ratio of the dry tensile strength prescribed | regulated to JISP8113 (1998) is 2.0 or less, and, especially a paper towel is 1.0-1.8. This aspect ratio can be adjusted by changing various papermaking conditions such as the jet wire ratio in the wire part. By keeping the aspect ratio (longitudinal / lateral) of the dry tensile strength low, the occurrence of vertical tearing (tearing in the winding direction) when cutting the exposed part from the paper exit is reduced, making it more linear Tearing is possible.

  Further, the paper towel preferably has a tensile breaking elongation (winding direction, usually the vertical direction) as defined in JIS P 8113 (1998) of 16% or less, and particularly preferably 13% or less. The tensile elongation at break can be adjusted by the degree of creping (so-called crepe rate). By keeping the tensile elongation at break low, the direction of the tearing force applied when the paper towel exposed from the paper exit is cut off is prevented from changing irregularly due to the elongation of the paper towel itself, and unintended longitudinal or oblique tearing occurs. Can be reduced.

  The paper towel preferably has a transverse tear strength of 65 gf or less as defined in JIS P 8116 (2000). The aspect ratio of the tear strength is preferably 0.75 or more, particularly 0.8 or more. The tear strength in the transverse direction can be adjusted by changing the blending of pulp, the degree of beating (freeness), the tensile elongation at break, and the like. When the tear strength in the lateral direction and the aspect ratio of the tear strength are within this range, not only will the force required for tearing be appropriate when cutting the paper towel exposed from the paper outlet, but also in the direction where unnecessary force is unnecessary. It becomes difficult to act on, and it becomes possible to tear more beautifully.

Further, when the paper towel has a basis weight measured according to JIS P 8124 (1998) of about 30 to 40 g / m ² , the paper thickness is a dial thickness gauge (under the conditions of JIS P 8111 (1998)). Thickness measuring device) It is desirable that the thickness is 140 to 220 μm in a value measured using “PEACOCK G type” (manufactured by Ozaki Seisakusho).

  Moreover, it is preferable that the specific value of the wet tensile strength (JIS P 8135 1998) of the paper towel is 500 to 1500 cN / 25 mm in the longitudinal direction.

Further, paper towels, water absorption, preferably from 100 to 200 g / m ^2. In addition, the water absorption here refers to a test piece cut into a 100 mm square, placed on a net, floated in a container containing water together with the net, pulled up after sufficient penetration of water into the test piece, and left for 30 seconds. It is the water absorption per 1 m ² calculated by measuring the mass of the test piece and subtracting the mass at the time of drying from this measured mass by 100.

  The paper towel preferably has a dry tensile strength (JIS P 8113 1998) in the range satisfying the above aspect ratio, and the longitudinal direction is 1400 to 3000 cN / 25 mm and the lateral direction is 600 to 1700 cN / 25 mm.

The values such as the dry tensile strength, tensile elongation at break, and tear strength mean values in a single sheet.
For example, if a paper towel is provided with a chemical, the application method, the applied chemical, and the amount applied are not limited. A known configuration can be employed.

“Example of housing structure”
Next, a structural example of the housing of the roll paper towel dispenser of the embodiment of the present invention will be described. As shown in FIGS. 1 to 3 and 5 in particular, the housing 1 is composed of a case body 10 with an open front surface and a lid body 11 that covers a front surface opening portion of the case body 10, and the support mechanism is provided below the case body 10. The paper towel 20 unwound from the roll paper 2 supported by the paper outlet 20 is exposed to the outside of the housing.

  The case main body 10 includes a top plate portion 12, a bottom plate portion 13, a back plate portion 14, and a pair of left and right main body side plate portions 15 and 15 extending forward from both side edges or both side edges of the back plate portion 14. It is installed on the wall surface or the like via the back plate part 14.

  The lid 11 has a front plate portion 16 having a curved surface portion whose upper part is in a series with the top plate portion 12 of the case body 10, and is formed on the back side (back plate side) at right angles to the front plate portion 16. It has a pair of left and right lid side plates 17, 17 that extend, and is arranged so as to cover the front side open portion of the case body 10, and constitutes a box-shaped housing 1 together with the case body 10.

  The lid 11 is attached to the case main body 10 in a hatched manner, and by pulling down, the case main body 10 is opened to the front, and the internal mechanisms such as the support mechanism inside the housing and the paper discharge roller 4 are exposed. The roll paper towel 2 can be replaced.

  In making such a hatch type, the hinge mechanism 18 may be provided on the front side edge of the bottom plate portion 13 of the case body 10 and the lower edge of the front plate portion 16 of the lid body 11. It is good also as a hatch type which provides the hinge mechanism 18 in the front side edge of the top-plate part 12 of the case main body 10, and the back side upper edge of the front board part 16 of the cover body 11, and it flips up the front surface. Furthermore, a pair of locking projections (not shown) are provided at the upper or lower portion of each main body side plate, and a pair of locking fitting holes corresponding to the locking projections at the upper or lower portion of each lid side plate. (Not shown) may be provided, and the case main body 10 and the lid body 11 may be coupled by fitting them. In this case, the locking projection and the locking fitting hole may be paired, and it does not matter which is on the case body side.

  On the other hand, the paper discharge port 5 at the bottom of the housing can be formed in the bottom plate portion 13 of the case body 10. In the illustrated example, the front side of the bottom plate portion 13 of the case body 10 is inclined toward the top plate portion 12 side. In the inclined portion, a narrow discharge port 5 is formed in the width direction, so that the user can easily take out the paper towel.

  Further, in the illustrated example, as shown in FIG. 5 in particular, a cutter blade 51 is attached so as to partially cover the paper discharge port 5 in order to easily cut out the paper towel exposed from the paper discharge port 5. . In the illustrated example, the cutter blade is a saw blade. In addition, this cutter blade can be formed with a metal or a hard plastic resin. Further, if a long paper towel constituting the roll paper is provided with a perforation line for cutting to facilitate cutting at an appropriate interval in the longitudinal direction, such a cutter blade can be dispensed with.

"Support mechanism example 1"
Next, a support mechanism example 1 of the dispenser for roll paper towel according to the embodiment of the present invention will be described. As shown in FIGS. 1, 2, and 5 to 7, the support mechanism housed in the housing 1 is a front plate side from the vicinity of both side plates of the back plate portion 14 (the front side when the wall surface is attached). A pair of arm portions 31L and 31R extending a predetermined length toward the side), and support portions 32L and 32R are attached to the tips of the arm portions 31L and 31R. Note that the arm portions 31L and 31R are not limited to the illustrated example, and the arm portions 31L and 31R may extend from the side plate portion 13 so as to protrude in the horizontal direction, or may hang down from the top plate portion 12. Alternatively, it may stand up from the bottom plate portion 13 toward the top plate portion 12. As long as the arm part 31 can position the support part 32 in the predetermined position in the range which does not prevent the effect of this invention, the specific aspect is not limited.

  Here, the dispenser X1 according to the present invention is characterized by a pair of convex pieces in which one of the support portions 32L stands up toward the upper side (the top plate portion side) on the back plate portion side and the front plate portion side. 33, 33 and a receiving surface 30 that is formed between the convex pieces 33, 33 and that receives the protruding portion 21P of the paper tube 21, and has a receiving portion 30 of the protruding portion 21P of the paper tube 21. By placing the trunk surface (circumferential surface) on the receiving portion 30, one end in the width direction of the roll paper 2 is rotatably supported.

  Moreover, as for the receiving part 30 of the example of illustration, as a preferable example, between each convex piece 33 and 33 goes toward the top part 33t of the other convex piece 33 from the top part 33t of one convex piece 33 via the said receiving surface 34. It is a smooth arcuate surface or a curved surface of a semi-cylindrical surface, and the paper tube 21 is configured to rotate smoothly. Further, the radius of curvature of the curved surface is substantially equal to the radius of the cross-sectional circle of the paper tube 21, and the paper tube 21 is fitted to the receiving portion 30 in a rotatable state, so that the roll paper (paper tube ), The paper tube 21 does not flutter between the convex pieces 33, 33.

  On the other hand, in the present example, the other 32R of the support part has a convex part 35 projecting horizontally toward the inner side in the width direction of the dispenser at the tip of the arm part 31R, and this convex part 35 is the cylindrical part 22. The air core portion 22r or the paper tube is loosely inserted into the air core portion 22r or the paper tube so that the upper side of the inner surface of the paper tube is placed, thereby supporting the other side of the roll paper 2 where the paper tube 21 does not protrude. It is supposed to be.

  Here, it is desirable that the convex portion 35 has a small friction at a contact portion with the roll paper or the paper tube so that the roll paper can be smoothly rotated. For this reason, although not illustrated, for example, it is desirable that the contact portion is a smooth surface, or at least the upper surface side is a semi-cylindrical or curved surface with the horizontal direction as an axis. Further, it is desirable that the tip be narrowed in order to facilitate insertion into the cylindrical portion of the convex portion or the paper tube.

  On the other hand, in this example, the convex portion 35 is configured such that the tip thereof can be moved upward (the top plate portion side) with the attachment portion with the arm portion 31R as a rotation axis, whereby the tip of the convex portion 35 is made a cylindrical portion. It is easy to insert into the air core portion 22r.

  In the dispenser X1 of the present embodiment having the support mechanism configured as described above, one end in the width direction of the roll paper 2 is supported by the support at the receiving portion 30 of the protruding portion 21P of the paper tube 21, and the other side is the cylindrical portion 22. A convex portion 35 is inserted and supported in the air core portion 22r or the paper tube. In such a support mechanism, flapping during rotation of the roll paper is prevented by the support by the receiving part 30, and friction that hinders rotation is reduced on the other side. Therefore, when the paper discharge roller 5 is driven in a state where the paper towel unrolled from the roll paper 2 is nipped, the load on the paper discharge roller 5 is reduced, and the power consumption of the driving source can be reduced.

  Here, in this example of the support mechanism, it is desirable that the distance L4 between the tip of the convex portion 35 and the receiving portion 30 is 102 to 105% of the width L2 of the cylindrical portion 22 of the roll paper 2. Within such a range, the roll paper is effectively prevented from unintentionally coming off the support mechanism 2 and falling off.

  In this example, the receiving portion 30 is formed on the left support portion 31L and the convex portion 35 is formed on the right support portion 31R toward the paper surface, but these may be reversed.

"Support mechanism 2"
Here, the support mechanism example 1 is an example in which the receiving portion 30 is provided on one of the support portions 31L and the convex portion 35 is provided on the other 31R. However, in the dispenser X1 of the present invention, the support mechanism is not illustrated. In Example 1, it can be set as the structure which provided the receiving part 30 in both of a pair of support parts 31L and 31R.
In this case, in the roll paper 2 according to the present invention, the paper tube 21 protrudes only in one side in the width direction. The supporting member 6 exemplified in (1) is used.

  The support member 6 has a structure having a cylindrical or columnar base 60 and a stopper portion 61 provided between the both end surfaces so as to protrude from the peripheral surface. The usage method is to insert one end side 60L from the stopper portion 61 into the hollow core portion 22r or the paper tube of the cylindrical portion 22 formed by winding the paper towel, and project the other end side 60R from the cylindrical portion 22; The protruding portion 60R is used so as to be supported by the receiving portion 30 of the supporting portion 31.

  In the supporting member 6, the outer diameter of the inserted portion 60L substantially matches the inner diameter of the air core portion 22r or the inner diameter of the paper tube 21, and the outer diameter of the protruding portion 60R is substantially equal to the outer diameter of the paper tube 21. It is desirable that they match. Although perfect coincidence is desirable, there is no problem if it is approximately ± 1 mm. If the outer diameter of the portion 60L to be inserted is excessively larger than the inner diameter of the air core portion 22r or the inner diameter of the paper tube 21, insertion becomes difficult and attachment becomes difficult.

  Further, if the outer diameter of the projecting portion 60R is significantly different from the outer diameter of the paper tube 21, the end support portions 31L and 31R are shaken during the rotation of the roll paper, and the effect of the present invention that reduces power consumption is manifested. It becomes difficult to do.

  The stopper portion 61 is preferably in the shape of a disk as shown in the example from the viewpoint of preventing over-insertion and preventing shaking during rotation of the roll paper, but is not limited to this form.

"Eject mechanism"
On the other hand, the dispenser X1 of the present embodiment has a discharge roller 4 below the support mechanism (on the bottom plate side), as can be understood from FIGS. 3 and 11 in particular. An example of the paper discharge roller 4 includes a rod-shaped rotary shaft 41 having an axis parallel to the axis when the roll paper 2 is attached to a support mechanism, and a rubber roll portion 42 provided at an appropriate position on the outer periphery thereof. And have. And the paper towel 20 unwound from the said roll paper 2 is clamped with the nip means 43 used as a pair. In FIG. 3, both-end support portions of the paper discharge roller and the nip roller are not shown. A well-known support mechanism can be adopted for the both end support portions. Examples of the nip means 43 include a nip roll paired with the rubber roll portion 41, or a pressing means such as a pressing spring attached to the front plate of the housing so as to press the paper towel against the paper discharge roller 4 (this) The form is not shown).

  Here, in the dispenser X1 of the present embodiment, the rotating shaft 41 is rotated by a driving source 70 that is driven by power supply from a power source 75 such as a known motor means, so that the paper discharge roller 4 is driven by electric power. It is supposed to be. Note that the shaft of the motor means 70 and the rotating shaft do not have to be coaxial, and as illustrated in FIG. 11, the rotation is performed by appropriately interposing known mechanisms such as gears 72 and 72, an endless belt 73, and a pulley 74. The shaft 41 may be rotated.

  On the other hand, the motor means 70 is driven and stopped in response to a signal detected by sensor means provided near the paper discharge port on the outer surface of the bottom plate portion 13. For example, when an optical sensor such as an infrared ray is brought to the above position and a hand is brought close to the paper discharge port, the optical sensor detects this and causes the motor means 70 to drive the motor means 70 for a predetermined time. In this way, the paper towel is exposed from the paper discharge port by the amount of rotation of the paper discharge roller according to the motor drive time. The driving and stopping of the motor means is not limited to that by the above-described sensor means. In addition, sensor means for detecting the amount of rotation of the cylindrical portion 22 can be adopted, and a paper discharge mechanism using a conventionally known sensor means can be adopted.

In the dispenser X1 of the present embodiment described above, the rotating shaft 41 is rotated by the motor means or the like while the paper discharge roller 4, the nip roll 43, and the paper towel 20 are nipped, and the paper towel 20 is exposed from the paper discharge port 5. That is, the roll paper is rotated as the paper is discharged. Therefore, when the roll paper 2 flutters at this time, the paper towel instantaneously tries to move in the direction opposite to the paper discharge direction (winding direction), and as a result, acts to prevent the normal rotation of the rotating shaft. However, the roll paper does not flutter due to the characteristic roll paper and support structure in the dispenser of the present invention. Does not hit the paper discharge roller. Therefore, the dispenser of the present invention consumes less power.
In addition, since such flapping is prevented, the rotational speed of the paper discharge roller can be increased to achieve quick paper discharge.

"Roll paper installation (replacement) mode 1"
Next, an installation aspect of the roll paper towel 2 in the roll paper towel dispenser X1 of the present invention will be described with reference to FIG.
In the support mechanism example 1, after the convex portion 35 is inserted into the air core portion 22r of the cylindrical portion 22 or the paper tube on the side where the other paper tube of the cylindrical portion 22 does not protrude, one of the cylindrical portions 22 is inserted. The roll paper is attached to the dispenser X1 so that the protruding portion 21P of the paper tube 21 protruding from the sheet tube 21 is placed on the receiving portion 30 of the support portion 32L.

  At this time, in the dispenser X1 of the present invention, the roll paper 2 can be attached without grasping the protruding portion 21P of the paper tube 21 by hand, inserting a finger inside the cylindrical portion 22, or touching the cylindrical portion 22 by a combination thereof. Can be performed. Therefore, even if it exchanges with a wet hand, the paper towel 20 concerning the cylindrical part 22 is not wetted.

"Attachment (exchange) mode 2 of roll paper"
On the other hand, in the support mechanism example 2, the protruding portion 21P of the paper tube 21 protruding from one of the cylindrical portions 22 of the roll paper 2 is held by hand, and the other paper tube 21 of the cylindrical portion 22 on the side where the other paper tube 21 does not protrude. A portion 61L of the mounting member 6 is inserted into the air core portion 22r of the cylindrical portion 22 or the paper tube, and then the protruding portion 21P of the paper tube 21 and the protruding portion 61R of the mounting member 6 are paired with a pair of support portions. The roll paper 2 is attached to the dispenser X1 so as to be placed on the receiving portions 30 of 32L and 32R. Even in this case, in the dispenser X1 of the present invention, the roll paper 2 can be attached without grasping the protruding portion 22 of the paper tube 21 by hand and touching the cylindrical portion 22. Therefore, even if it exchanges with a wet hand, the paper towel 20 concerning the cylindrical part 22 is not wetted. In addition, since the work can be performed with one hand, the roll can be replaced without problems even in a narrow space.

"Method for manufacturing roll paper"
Here, the manufacturing method of the above-mentioned roll paper used for the dispenser for roll paper towels of this invention is demonstrated. In the roll paper 2 according to the present invention, a paper tube protrudes from one end surface of a cylindrical portion 22 around which a paper towel is wound, and this roll paper has a paper tube protruding from both ends of the cylindrical portion 22. In comparison, the roll paper manufacturing equipment of the existing equipment can be manufactured with minor improvements.

  In the manufacturing method, first, a long paper tube is manufactured by winding a strip-shaped paper tube base paper around a core rod, and then the long paper tube in which the mandrel is inserted is slit to have an appropriate length. Manufacture multiple paper tubes. In this state, as shown in FIG. 13A, a plurality of connected paper tubes share one mandrel 80, and a plurality of paper tubes 21, 21,... Connected to the slit S1 are one paper tube. The group 28 is in a state of constituting.

  Next, the paper towel base paper 90 is unwound from the raw roll 9 on which a paper towel base paper having a width equal to or larger than the product width of the paper towel is wound, and the rolled paper towel base paper is slit into the paper towel width. A paper towel base 91 having a slit (denoted by S2) is wound around a paper tube group 28 that shares the single mandrel 80 and is connected to the plurality of paper tubes. In addition, you may trim the width direction both sides of a paper towel base paper prior to a slit according to a known method. At this time, when gluing at the beginning of winding, no gluing is applied to a portion where a later-described drawer portion and a paper tube are in contact.

  When the winding is performed, the winding process is performed so that one end 28t of the paper tube group 28 protrudes from the side of the paper towel base paper 91 as shown in FIG. 13B. That is, the winding process is performed in a state where the single paper tube group 28 is offset to one end side with respect to the paper towel base paper 91.

  As a result, as shown in FIG. 13C, a plurality of roll papers 2, 2... Are formed at the same time, and these roll papers 2, 2. The paper tubes are wound in a state of sharing a part 21P, 21P,. That is, except for the roll paper located on the most end side, the paper tube portion protruding from the cylindrical portion of the roll paper is inserted into the air core portion of the cylindrical portion of the adjacent roll paper.

  Then, from this state, as shown in FIG. 13D, the mandrel is pulled out, and then the sharing of the paper tube is released, that is, the paper tube portion inserted in the air core is pulled out. By separating each roll paper, a plurality of roll papers of the present invention are manufactured simultaneously.

  In addition, the manufacture of the conventional roll paper towel is performed by winding the paper towel base paper around the paper tube group without offset in the winding process. Therefore, the roll paper of the present invention can be achieved only by offsetting the paper towel base paper with respect to the paper tube group at the time of the winding process, and can cope with the existing manufacturing equipment only by a small improvement accompanying the offset. Is possible.

  Moreover, the roll paper in which the paper tube protrudes from both ends of the cylindrical portion 22 is difficult to manufacture because the end faces are not aligned. Therefore, for example, in the case of the support mechanism example 2 described above, it is more preferable to use the mounting member 6 than to use the roll paper in which the paper tube protrudes from both ends of the cylindrical portion 22. This is desirable from the viewpoint of paper manufacture.

  In the example of the manufacturing method described above, the shared portion of the paper tube becomes a portion of the paper tube protruding from the cylindrical portion 22. When the length L3 of the protruding portion described in the above-mentioned “roll paper” is used, it is easy to separate each roll paper, and the length L3 of the protruding portion is preferable from the viewpoint of the manufacturing method.

  X1, X2 ... dispenser for roll paper towel, 1 ... housing, 2 ... roll paper towel, 20 ... paper towel, 21 ... paper tube, 21P ... protruding portion of paper tube, 22 ... cylindrical portion, 22L ... one end face of cylindrical portion, 22R ... the other end face of the cylindrical part, 30 ... receiving part, 31R, 31L ... arm part, 32L, 32R ... supporting part, 33 ... convex piece, 33t ... top part of convex piece, 34 ... receiving face, 35 ... convex part, 4 ... Paper discharge roller 41 ... Rotating shaft 42 ... Rubber roll part 43 ... Nip means (nip roller) 5 ... Paper outlet 51 ... Cutter blade 6 ... Supporting member 60 ... Base part 60L ... Insertion part 60R: Projection, 61: Stopper, L1: Diameter of cylindrical portion, L2: Width of cylindrical portion, L3: Length of projection of paper tube, L4: Distance between tip of convex portion and receiving portion, 10 ... Case body, 11 ... Cover, DESCRIPTION OF SYMBOLS 2 ... Top plate part, 13 ... Bottom plate part, 14 ... Back board part, 15 ... Main body side plate part, 16 ... Front plate part, 17 ... Cover body side plate part, 18 ... Hinge mechanism, 70 ... Motor means (of discharge roller) Drive source), 72 ... gear, 73 ... endless belt, 74 ... pulley, 75 ... power source, 28 ... paper tube group, 80 ... mandrel, 9 ... original fabric roll, 90 ... paper towel base paper, 91 ... slit paper towel base paper , S1, S2 ... slits.

Claims (3)

A support mechanism for supporting the roll paper towel inside the housing, a paper discharge roller for discharging the paper towel unwound from the roll paper towel, and a paper towel fed out by rotation of the paper discharge roller for exposing the paper towel outside the housing A roll paper towel dispenser, wherein the paper discharge roller is rotationally driven by electric power.
This dispenser for roll paper towel is used for a roll paper towel in which a long belt-shaped paper towel is wound around a paper tube and the paper tube protrudes from at least one end surface of a cylindrical portion formed by winding the paper towel. ,
The roll paper towel support mechanism comprises a pair of support parts that support the roll paper towel on the side of the housing,
One of the pair of support portions, have a receiving portion for supporting the cylindrical surface of the projecting portion of the paper tube rotatably, the other of the pair of support portions, the air-core portion without paper tube or paper tube A roll paper towel dispenser characterized by having a convex part that is loosely inserted into the roll paper towel. A support mechanism for supporting the roll paper towel inside the housing, a paper discharge roller for discharging the paper towel unwound from the roll paper towel, and a paper towel fed out by rotation of the paper discharge roller for exposing the paper towel outside the housing A roll paper towel dispenser, wherein the paper discharge roller is rotationally driven by electric power.
This dispenser for roll paper towel is used for a roll paper towel in which a long belt-shaped paper towel is wound around a paper tube, and the paper tube protrudes from one end surface of a cylindrical portion formed by winding the paper towel,
A part of the cylindrical tube around which the paper towel is wound is inserted into the other end surface where the paper tube does not protrude, and a supporting member is protruded from the other end surface;
The roll paper towel support mechanism comprises a pair of support parts that support the roll paper towel on the side of the housing,
One of the support portions is a receiving portion that rotatably supports the cylindrical surface of the protruding portion of the paper tube, and the other is a portion that protrudes from a cylindrical portion formed by winding the paper towel of the supporting member. The receiving portion is configured to receive the protruding portion of the paper tube and the portion protruding from the cylindrical portion around which the paper towel of the supporting member is wound by each receiving portion so as to be rotatably supported. A roll paper towel dispenser characterized by that.   The roll paper towel dispenser according to claim 1 or 2, wherein the receiving portion has a circular arc surface or a semi-cylindrical surface.

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