JP4561119B2 - Paper roll - Google Patents

Description

  The present invention relates to a paper winder that supports a paper wrap represented by toilet paper.

  With the widespread use of flush toilets, water-soluble wrapping paper has been used, and a paper wrapping machine (also called a paper holder) that supports this wrapping paper has come to be always provided on the wall of the toilet room.

2. Description of the Related Art A widely used structure of a paper winder is that a cigarette case fixed to a wall is attached to a support shaft that supports the paper roll and a cover that can swing up and down, and the cover is placed on the paper roll.
The toilet user pulls out the necessary length of paper with one hand, presses the lid with the other hand, and operates the paper and the paper winder with both hands as if cutting the paper at the tip of the lid.

However, when a toilet user who has difficulty with one hand tries to use a conventional paper winder, the lid floats in the air and the paper cannot be cut.
Therefore, a paper roll that can be operated with only one hand is required, and a proposal that meets this demand has been made. (For example, patent document 1).
Japanese Utility Model Publication No. 6-36798 (second page, FIGS. 1 and 2)

Patent document 1 is demonstrated based on the following figure.
FIG. 10 is a diagram for explaining the basic configuration of the prior art. The paper holder 100 is fixed to a wall (not shown) via a support frame 101 and is made of an elastic material such as sponge attached to a support shaft 103 extending from the side plate 102. The roll-shaped paper 105 is fixed through the projection 104 thus formed.
The upper part of the side plate 102 includes a lid 106 and a cutter 107 connected to the tip of the lid 106. Further, a rotary arm 108 is provided outside the support shaft 103, a spring 109 is provided below the rotary arm 108, and a pinion 110 is provided outside the rotary arm 108. 111 is a ratchet that meshes with the pinion 110, and 112 is a mounting hole that connects the support shaft 103 and the rotary arm 108.

FIG. 11 shows the operation of FIG.
10A is a view taken in the direction of arrow 11a in FIG. 10. When the cutter 107 at the tip of the lid 106 is pushed as indicated by an arrow A, the roll-shaped paper 105 tries to push down the spring 109 as indicated by an arrow B. At this time, the rotary arm 108 and the pinion 110 try to move downward.

  (B) is an action diagram when the paper is pulled out, and as a result of (a), the pinion 110 rotates counterclockwise by one tooth, and the tooth b adjacent to the tooth a and the ratchet 111 mesh. As a result, the paper is pulled out in the direction of arrow C by the length of one tooth.

However, in the paper winder of Patent Document 1, it is necessary to press the tip of the cutter 107 against the paper when drawing out the paper, and by repeating this, a dent scratch is attached to the upper part of the paper.
Further, in order to pull out the paper for one tooth of the pinion 110 in one operation, it is necessary to repeat the operation many times when the required amount of paper is taken out.

  An object of the present invention is to provide a paper winder that can smoothly draw a required amount of paper without leaving any scratches on the paper.

According to the first aspect of the present invention, a support shaft that supports a paper roll is attached to a paper roll base that is fixed to a wall, and the lid that can hold the paper supported by the support shaft from above and can be cut to an appropriate length is provided. In the paper roll provided in the base of the vessel,
The lid has a two-lid structure of a lower lid that suppresses the wrapping paper and an upper lid that protrudes from the lower lid and has a blade portion for cutting the wrapping paper at the tip.
A lower gear is integrally provided at the base of the lower lid, an upper gear meshing with the lower gear is integrally provided at the base of the upper lid, and the upper gear and the lower gear are rotated on a side plate that is attached to the base of the paper winder so as to be movable up and down. The lower lid swings downward by the action of the upper and lower gears when the upper lid is swung upward.

The invention according to claim 2 allows the side plate to rotate when the upper lid and the lower lid are moved downward between the shaft that rotatably supports the side plate and the cigarette base, but the upper lid and the lower lid are moved upward. In this case, a ratchet mechanism that requires release of the ratchet pawl is interposed.

The invention according to claim 3 allows the side plate to rotate when the upper lid and the lower lid are moved downward between the shaft for rotatably supporting the side plate and the cigarette base, but the upper lid and the lower lid are moved upward. In addition, a ratchet mechanism that requires the ratchet pawl to be released is interposed, and the rotation of the lid side shaft is restricted by a force that pulls up the web, but the lid side shaft is allowed to rotate by a force exceeding a certain level. A braking mechanism is interposed.

In the invention according to claim 1, the base of the upper lid having a two-lid structure, the lower gear provided at the base of the lower lid, the upper gear meshing with the lower gear protruding longer than the lower lid and the blade at the tip The upper gear and the lower gear are rotatably attached to a side plate that is attached to the base of the paper winder so as to be movable up and down.
For this reason, the leading edge of the wrapping paper preferentially contacts the blade part of the upper lid when it is pulled out, and when the upper lid is moved upward, the lower gear rotates in the opposite direction along with the rotation of the upper gear and lowers the lower lid. Can move in the direction. The leading end of the wrapping paper is easily pulled by fixing the upper part of the wrapping paper with the upper part of the lower cover as the lower cover moves downward, and is easily cut by the blade part.

  As described above, the paper wrapper has a two-lid structure, and an upper gear and a lower gear are provided at the base of the two lids, so that the upper and lower lids move smoothly in opposite directions, and the wound paper is scratched. There is an advantage that the leading end of the wrapping paper can be easily cut without leaving.

In the invention according to claim 2, when the upper lid and the lower lid are moved downward between the shaft that rotatably supports the side plate and the cigarette base, the side plate is allowed to rotate, but the upper lid and the lower lid are moved upward. A ratchet mechanism that requires the ratchet pawl to be released is interposed.
Cigarettes equipment can was interposed a ratchet mechanism, when moving the upper lid and lower lid upwards, the entire lid ratchet mechanism for restricting the rotation of the upper part, the paper wrapper in the abdomen of the upper lid and lower lid The operation of pressing the upper part and fixing the wrapping paper can be performed reliably, and the cutting ability of the wrapping paper is improved.

In the invention according to claim 3, when the upper lid and the lower lid are moved downward between the shaft that rotatably supports the side plate and the cigarette base, the side plate is allowed to rotate, but the upper lid and the lower lid are moved upward. In addition, a ratchet mechanism that requires the ratchet pawl to be released is interposed, and the rotation of the lid side shaft is restricted by a force that pulls up the wrapper, but the rotation of the lid side shaft is allowed at a force exceeding a certain level. Since the braking mechanism is interposed , both the ratchet mechanism acting in one direction and the braking mechanism for controlling the rotation of the lid side shaft are combined. Therefore, when the ratchet mechanism and the braking mechanism are separately arranged, they are easily available and / or An inexpensive ratchet mechanism and braking mechanism can be selectively employed, and the degree of freedom in design can be increased.
On the other hand, when the ratchet mechanism and the braking mechanism are collectively stored in one container, the overall configuration can be made compact.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a perspective view of a paper winder according to the present invention. The paper winder 10 has a paper base 13 fixed to a wall 11, a support shaft 14 that supports the paper roll 13 is attached, and the paper roll 13 supported by the support shaft 14. This is a basic configuration in which a lid 15 that can be cut from an upper side and cut to an appropriate length is provided in the paper winder base 12.

The lid 15 has a two-sheet lid structure of a lower lid 16 that holds the wrapping paper 13 and an upper lid 18 that protrudes from the lower lid 16 and includes a blade portion 17 for cutting the wrapping paper 13 at the tip.
The base horizontal plate 19 was provided with a ratchet mechanism 20 interposed in the operation of the lid 15. The ratchet mechanism 20 includes a ratchet pawl 22 attached to the ratchet shaft 21 and a ratchet gear 24 attached to a ratchet gear shaft 23 that meshes with the ratchet pawl 22.
Reference numeral 25 denotes a support shaft operating window, and 26 and 27 denote support shaft spring cases.

  When the lower lid 16 is moved downward, the ratchet mechanism 20 allows a vertical movement of a side plate (not shown, which will be described later because it is a part provided inside the base lateral plate 19) coupled to the ratchet gear shaft 23. This mechanism supports the operation of the upper lid 18 and the upper lid 18, but requires the ratchet pawl 22 to be released when the lower lid 16 is moved upward to return the lid 15 to its original position.

  FIG. 2 is a cross-sectional view of the paper winder according to the present invention. The paper winder 10 fixes the paper winder base 12 to the wall 11 with screws 29 and 31, and supports the paper roll 13 and the spindle 14 that supports the paper roll 13 from above. The lid 15 that can be restrained and cut to an appropriate length, the support spring cases 26 and 27 provided on both sides of the support shaft operating window 25, and the support shaft 14 in the support spring cases 26 and 27. Is configured to include springs 37 and 38 that move within the spindle operation window 25.

  The lid 15 has a two-sheet lid structure of a lower lid 16 that holds the wrapping paper 13 and an upper lid 18 that protrudes from the lower lid 16 and includes a blade portion 17 for cutting the wrapping paper 13 at the tip. A base gear 32 is provided with a lower gear 33, an upper gear 34 meshing with the lower gear 33 is provided on an upper lid base 35, and the lower gear 33 and the upper gear 34 are rotated on a side plate 36 attached to the paper base 12 so as to be movable up and down. The lower lid 16 is configured to swing downward by the action of the upper and lower gears 34 and 33 when the upper lid 18 is swung upward.

  Reference numeral 39 denotes a winding drum supported by the support shaft 14, 41 denotes a tip of the lower lid, 42 denotes an upper surface of the base portion, and 43, 44, 45 and 46 denote screws for fixing the support spring cases 26 and 27.

FIG. 3 is an operational view of the process of temporarily attaching the web to the spindle of the paper winder of the present invention.
(A) In the paper wrapper 10, the upper surface portion 51 of the web 13 is applied to the lower surface portion 52 of the support shaft 14,
As shown by an arrow D, an initial stage in which the wrapping paper 13 is lifted upward so as to spring up the support shaft 14 is shown.

(B) shows a state in which the support shaft 14 is flipped upward by the wrapping paper 13 and the distance between the upper surface portion 51 of the wrapping paper 13 and the lower lid 16 is reduced.
The upper part of the spindle 53 is slightly caught on the upper part of the winding drum 39, and the wrapping paper 13 cannot be set yet. Further, the wrapping paper 13 is moved upward as indicated by an arrow E.

(C) shows a state in which the support shaft 14 is returned to the original position by the wrapping paper 13 and the wrapping paper 13 is temporarily set.
When the lower surface portion 52 of the support shaft 14 is brought into contact with the lower portion of the winding drum 39, the distance between the upper surface portion 51 of the wrapping paper 13 and the lower lid 16 becomes shorter than the distance between the upper surface portion 51 and the lower lid 16 in FIG. . Subsequently, in order to formally attach the wrapping paper 13, the wrapping paper 13 is lowered as indicated by an arrow F so that the upper surface portion 54 of the support shaft 14 and the upper portion of the winding drum 39 are brought into contact with each other.

FIG. 4 is an operation diagram of the process of cutting the leading end of the wrapping paper from the wrapping paper attached to the spindle.
(A) shows a state in which the paper wrapper 13 is formally attached to the paper winder 10, and the upper surface portion 54 of the support shaft 14 and the upper portion of the winding drum 39 are in contact with each other to hold the paper wrapper 13 stably.
At this time, the distance G between the upper surface portion 51 of the wrapping paper 13 and the lower lid 16 is longer than the distance between the upper surface portion 51 and the lower lid 16 in FIG.

(B) shows the action of pulling out the tip 55 from the wrapping paper 13.
The procedure for pulling out the leading end 55 of the wrapping paper 13 is that when the leading end 55 of the wrapping paper 13 is pulled upward while being in contact with the blade portion 17 of the upper lid 18 as indicated by the arrow H, the ratchet gear 24 rotates right as indicated by the arrow J, In conjunction with this, the side plate 36 moves, the upper gear 34 rotates to the right and the lower gear 33 rotates to the left, and the upper lid 18 is moved upward as indicated by the arrow M and the lower lid 16 is moved downward as indicated by the arrow N.

(C) shows the action of cutting off the leading end 55 of the wrapping paper 13.
When the lower lid 16 and the upper lid 18 are moved up and down as shown in FIG. 4B, the upper surface portion 51 of the wrapping paper 13 is suppressed by the lower surface portion 56 of the lower lid 16. Subsequently, the tip 55 of the wrapping paper 13 is in contact with the lower lid tip 41 of the lower lid 16 (the lower lid tip 41 is not in contact with the wrapping paper 13), and the direction of the arrow P is the paper 57 cut by the blade portion 17. The remaining tip 55 is dropped downward as indicated by the arrow Q.

  As described above, the paper wrapper 10 has a two-lid structure for the lid 15, and the lower gear base 32 and the upper gear 34 are provided on the lower lid base 32 of the lower lid 16 and the upper lid base 35 of the upper lid 18. The lower lid 16 and the upper lid 18 move smoothly in opposite directions, and the leading end 55 of the wrapping paper 13 can be easily cut.

  In addition, such a two-lid structure can cut off the leading end portion 55 of the wrapping paper 13 while suppressing the upper surface portion 51 of the wrapping paper 13 with the lower surface portion 56 of the lower lid 16, so that the wrapping paper 13 is left scratched. In this case, the wrapping paper 13 can be exchanged and cut out.

  Further, since the paper wrapper 10 has the ratchet mechanism 20 interposed, when the upper lid 18 is moved upward, the ratchet mechanism 20 restricts the entire lid 15 from rotating upward. The operation of pressing the upper part of the wrapping paper 13 at the abdomen and fixing the wrapping paper 13 can be performed reliably, and the cutting property of the wrapping paper 13 is improved.

FIG. 5 is a diagram showing another embodiment of FIG. 1, and the elements common to the previous embodiments use the reference numerals. The paper winder 60 includes a substrate 14 on the base plate 19 of the paper winder base 12, a support shaft 14 that supports the paper roll 13, an upper lid 18 that includes a blade portion 17 for cutting the paper roll 13, and a lower lid 16 that presses the paper roll 13. A paper winder having two lids 15 attached thereto. Reference numeral 61 denotes a case incorporating a ratchet mechanism and a braking mechanism (not shown).
The main part of the paper roll 60 will be described in detail below.

FIG. 6 is a layout view of the lid, a ratchet mechanism that acts in one direction, and a braking mechanism. A lid shaft 62 is fixed to the base portion (right end in the figure) of the upper lid 18 of the lid 15, and the upper gear 34 is placed in the middle of the lid shaft 62. The other end of the lid shaft 62 is rotatably attached to the side plate 36, while the lid shaft 63 is fixed to the base portion (right end in the figure) of the lower lid 16, and the lower gear 33 is provided in the middle of the lid shaft 63. The other end is rotatably attached to the side plate 36, a rotary damper 65 as a braking mechanism is connected to a shaft 64 of the side plate 36, a ratchet gear 67 is connected to a shaft 66 extended from the rotary damper 65, and the ratchet gear is connected. The ratchet pawl 68 is engaged with 67.
The upper gear 34 and the lower gear 33 are arranged so as to mesh with each other.

  A combination of a ratchet gear 67, a ratchet pawl 68, and a torsion spring 69 is used as a ratchet mechanism 70, and this ratchet mechanism 70 is a preferred form of a one-way clutch mechanism.

FIG. 7 is a principle diagram of a rotary damper. The rotary damper 65 includes a friction plate 71 directly connected to the shaft 64, a damper case 72 for housing the friction plate 71, and a high viscosity such as grease filled in the damper case 72. If the torque that is made of the substance 73 and acts on the shaft 64 is less than a certain value, the frictional force between the damper case 72 and the friction plate 71 wins, and the damper case 72 rotates integrally with the shaft 64. Alternatively, if the damper case 72 is fixed, the shaft 64 cannot rotate. This action is called braking action.
If the torque acting on the shaft 64 is a certain value or more, slip occurs between the damper case 72 and the friction plate 71.

  By the way, as shown in FIG. 6, the rotary damper 65 as a braking mechanism and the ratchet mechanism 70 are arranged in series. The rotary damper 65 and the ratchet mechanism 70 are easily available and inexpensive. Therefore, it is possible to procure an appropriate type of component, and the degree of freedom in arrangement is high. However, it is difficult to arrange in a compact manner. The invention which improved this point will now be described.

  FIG. 8 is a principle diagram of a ratchet mechanism with a braking mechanism according to the present invention. The ratchet mechanism 80 with a braking mechanism has, for example, two O-rings 82 fitted on a shaft 81 and ratchet gears 67 are attached to these O-rings 82 and 82. The ratchet claw 68 is engaged with the ratchet gear 67, and the shaft 81, the O-rings 82 and 82, the ratchet gear 67 and the ratchet claw 68 are collectively stored in the case 61 and covered with the lid 83. And

  Since the brake mechanism and the ratchet mechanism are collectively accommodated in the case 61, it is easy to attach to the cigarette case. Since it is housed in the case 61, there is no risk of losing parts.

  9 is a cross-sectional view taken along the line 9-9 in FIG. 8. The shaft 64, the O-ring 82, the ratchet gear 67, and the ratchet pawl 68 are collectively stored in the case 61, and the ratchet pawl 68 is locked by the torsion spring 69. It shows that it was supposed to be energized.

  Since the O-ring 82 is made of synthetic rubber, the surface friction coefficient is much higher than that of metal. Further, the O-ring 82 is fitted to the shaft 81 while being compressed with a predetermined force, and is fitted to the ratchet gear 67. Therefore, even if a torque less than a certain value acts on the shaft 81, the shaft 81 does not rotate when the ratchet gear 67 is stationary. When the torque exceeds a certain value, the shaft 81 rotates even if the ratchet gear 67 is stationary.

As described above, in FIGS. 5 to 9, since the ratchet mechanism acting in one direction and the braking mechanism for controlling the rotation of the lid side shaft are combined, when the ratchet mechanism and the braking mechanism are separately arranged, it is easy to obtain and / or Alternatively, an inexpensive ratchet mechanism and braking mechanism can be selectively employed, and the degree of freedom in design can be increased.
On the other hand, when the ratchet mechanism and the braking mechanism are collectively stored in one container, the overall configuration can be made compact.

  The two lids 15 of the paper winding machine 10 of the present invention basically have the upper lid 18 with the blade portion 17 at the tip longer than the lower lid 16, and the lower surface portion 56 of the lower lid 16 is the upper surface of the wrapping paper 13. As long as the lower lid tip 41 does not contact the wrapping paper when it comes into contact with the portion 51, the fine shape is not limited.

  The material of the upper lid 18 and the lower lid 16 of the lid 15 can be freely selected from resin, stainless steel, aluminum, brass and the like as long as the blade portion 17 can be processed on the upper lid 18.

  Furthermore, in the present invention, the braking mechanism that maintains the coupled state when a torque less than a certain value is applied and slips when the torque exceeds a certain value and becomes a non-coupled state includes the rotary damper 65 and the O-ring 82 as elements. Other than that, a torque limiter or a sliding clutch composed of two disks and a spring that biases one disk to the other disk may be used as long as they exhibit the same action. The format and structure can be arbitrarily selected.

  The paper roll of the present invention is suitable for use as a paper roll for paper rolls such as toilet paper and kitchen paper.

1 is a perspective view of a paper roll according to the present invention. 1 is a cross-sectional view of a paper winder according to the present invention. It is an effect | action figure of the process of temporarily attaching a wrapping paper to the spindle of the paper winding device of this invention. It is an effect | action figure of the process of cutting off the front-end | tip part of a wrapper from the wrapper attached to the spindle. It is another Example figure of FIG. It is a layout view of a lid, a ratchet mechanism that acts in one direction, and a braking mechanism. It is a principle diagram of a rotary damper. It is a principle diagram of a ratchet mechanism with a braking mechanism according to the present invention. FIG. 9 is a sectional view taken along line 9-9 in FIG. 8. It is a figure explaining the basic composition of the conventional technology. It is a figure which shows the effect | action of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Paper winding machine, 12 ... Paper winding machine base, 13 ... Wrapping paper, 14 ... Support shaft, 15 ... Cover, 16 ... Lower cover, 17 ... Blade part, 18 ... Upper cover, 20 ... Ratchet mechanism, 32 ... Lower cover base, 33 DESCRIPTION OF SYMBOLS ... Lower gear, 34 ... Upper gear, 35 ... Upper lid base, 36 ... Side plate, 41 ... Lower lid tip, 65 ... Rotary damper, 70 ... Ratchet mechanism, 80 ... Ratchet mechanism with braking mechanism

Claims (3)

A paper winder provided with a cover that supports a paper roll attached to a paper roll base fixed to a wall, and that can hold the paper supported by the support shaft from above and can be cut to an appropriate length. In
The lid has a two-lid structure of a lower lid that suppresses the wrapping paper, and an upper lid that protrudes from the lower lid and includes a blade portion for cutting the wrapping paper at the tip.
A lower gear is integrally provided at the base of the lower lid, and an upper gear meshing with the lower gear is integrally provided at the base of the upper lid, and the upper gear and the lower gear are attached to the cigarette base so as to be vertically movable. A paper winder which is rotatably attached to a side plate, and wherein the lower lid swings downward by the action of the upper and lower gears when the upper lid is swung upward. Between the shaft and the cigarette unit base rotatably supporting said side plates, but allows the rotation of the side plate when moving the upper lid and lower lid down, ratchet when moving the upper lid and lower lid upward The paper winder according to claim 1, further comprising a ratchet mechanism that requires release of the claw. When the upper and lower lids are moved downward between the shaft that rotatably supports the side plates and the cigarette base, the side plates are allowed to rotate, but when the upper and lower lids are moved upward, the ratchet pawls with the interposition of a ratchet mechanism which release is required, the force of the extent to pull the paper roll rotatably supporting said side plates with a constant force or more but limits beyond that the rotation of the shaft supporting rotatably said side plate shaft The paper winder according to claim 1, further comprising a braking mechanism that allows the rotation of the paper winding mechanism.

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