JP4395885B2 - Roll paper holding device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to improvements in roll paper such as toilet paper or a roll-out sheet-like holder that is similar to the roll paper. The present invention relates to a self-facing return roll paper holding device capable of removing all unstable elements of the self-facing return operation of the air core receiver by so-called “sagging” inherent to a flexible restoring elastic member.
[0002]
[Prior art]
Conventional roll paper holders using a self-returning roll paper holding device include, for example, those disclosed in Japanese Patent Application Laid-Open No. 9-215628 and Japanese Patent Application Laid-Open No. 10-127525, and FIGS. Those described in the text are well known.
[0003]
In each of these conventional technologies, a roll paper air core receiver that returns to the opposite side of each of a plurality of side bodies in a substantially “U” -shaped or “Y” -shaped roll paper holder by a flexible spring is returned. The roll paper is always provided facing each other, and a roll paper is inserted between the receivers from the front, and the roll paper is pivotally set to each roll paper air core receiver with its core tube or air core. Sometimes, the roll paper is moved backward while pushing the left and right air core receivers, which have returned to the opposite side in advance, against the protruding elasticity diagonally backward on the side of the roll paper, and the roll paper core tube or left and right openings of the air core are opened. When the edge faces the leading edge of the air core receiver, each of the left and right roll paper air core receivers is plunged into the core tube or the air core with its inward straightening recovery elasticity, so that the roll paper is placed against the roll paper holder. It is trying to pivot set.
In addition, in order to remove the used roll paper core tube from each of the conventional roll paper holders, the left and right roll papers that are elastically plunged into an empty core tube by pulling out the core tube toward the front. It is said that the empty roll paper core tube can be removed from the roll paper holder while tilting the air core receiver diagonally forward against its self-projecting elasticity.
[0004]
[Problems to be solved by the invention]
In each of these conventional examples, as described above, the roll paper holders are always attached to the roll paper holders after the oblique tilting of the roll paper cores when the roll paper is set and the forward tilting of the roll cores when the empty core tube is removed. In order to return to the opposite side inwardly from the side body facing surface of the roll paper holder, a spiral spring made of a metal wire on the pivot provided on the side of the roll paper holder, or a single plate with a flexible restoring elastic material Rolls in which two leaf springs formed on the upper and lower portions of the plate spring are arranged on the upper and lower sides of the pivot spring, the base portions of the leaf springs are supported in a stationary manner with respect to the pivot body, and are engaged with the flexible elastic return portions of the leaf springs. As described above, the paper air core receiver is pivotally provided so as to face the side body at all times.
[0005]
Therefore, each of these two conventional examples is an essential flexible restoring member for maintaining the left and right roll paper core receivers to be elastically protruded inwardly from the side body facing surface of the roll paper holder. For example, a vine spring made of a metal wire or a single plate spring made of a flexible restoring elastic material in the form of a single plate is used by arranging it on the top and bottom of the pivot. Among the members, the vine spring made of metal wire is made into a complicated shape by bending or winding a thin wire, so it is handled in all aspects of production, management, transportation, storage, purchase and use. It is painful, inconvenient and troublesome, and has the essential and big problem that it is easy to lose even if it is a little external force.
[0006]
Moreover, in the example in which the “person” -shaped or single-character plate spring single plate in each of the conventional examples is disposed above and below the pivotal support, the plate spring single plate itself is a thin single plate made of flexible plastic. Therefore, the flexible restoring elasticity is originally weak, and two leaf spring single plates are arranged one by one on the top and bottom of the pivot body, so the vertical width of each leaf spring single plate is The width must be narrowed to about half of the height of the hollow inner method, and the flexible restoring elasticity of each leaf spring single plate becomes increasingly weaker. The bending stress applied to each leaf spring single plate against its elastic force is concentrated only on the forced bending part of each leaf spring single plate every time the air core receiver is tilted forward when the hollow core tube is removed. Therefore, the leaf spring is bent and wrinkled, and it is easy to partly fatigue the machine. The so-called “sagging” inherent to the flexible restoring member that the restoring elasticity becomes extremely weak occurs, and the opposing return position of the air core receiver becomes extremely unstable during use, making it unusable. When a bending stress exceeding the elastic recovery limit is intensively repeatedly applied to the forced bending portion of a single plate, there is an essential and big problem that it becomes useless in a single shot.
[0007]
The present invention improves upon the above-described flexible restoring member when pivotally supporting the roll paper air bearing which is self-returned by the flexible restoring member on the left and right side bodies of the substantially U-shaped or Y-shaped roll paper holder. By devising it, it is possible to remove the unstable elements of the self-returning operation of the roll paper air core receiver due to the weakening of the linearization restoration elasticity, that is, the so-called “sagging” inherent to the flexible elastic member. Objective.
[0008]
[Means for Solving the Problems]
The object of the present invention described above is to provide an opposite pivot having a lower arm when pivotally supporting a self-returning roll paper core receiver on each of the left and right sides of a substantially U-shaped or yo-shaped roll paper holder. A fixed base portion of a tapered flat ring-shaped opposing bullet is provided to prevent it from coming off, and this opposed bullet is covered with a roll paper air core receiver that is open at the bottom, and this opposed hole is engaged with the opposed pivot. By engaging a locking collar protruding from the upper part of the pivot with a locking hole edge formed at the lower part of each side body, the opposing pivot is attached to the lower side of the side body, and a roll is applied to each side body. This can be achieved by pivoting the paper core receiver so that it can be returned to the opposite direction by the straightened restoring elasticity of the opposite bullet.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
First of all, the basic form of the present invention is a self-opposing return which is pivotally supported by means to be described later on each of the left and right side bodies 1 in a roll paper holder H formed of plastic or the like in a substantially U-shape as shown in FIG. As shown in FIG. 1, the roll paper R is supported on the roll paper air core receiver 2 so as to be rotatable at the air core r as shown in FIG. A roll paper holder H that presses the lower surface of the front side of the pivoted paper cutting plate P and cuts the feeding portion of the roll paper R fed forward through the lower surface of the front side with the front edge edge P1 of the paper cutting plate P. It is composed roughly.
[0010]
In the present invention, as a pivotal support A for pivotally supporting the roll paper air core receiver 2 at the lower part of each of the left and right side bodies 1, a plastic opposing pivot 4 is provided on the lower collar 3 as shown in FIG. While using the projecting pivot A, a tapered end as shown in FIG. 2 is formed by a flexible restoring elastic material such as polyester elastomer into a tapered flat ring shape with a vertical width approximately half the height of the opposite pivot 4. The fixed base portion 7 of the opposed bullet piece 6 closed is press-fitted into the gap at the intermediate notch 5 portion of the opposed pivot 4 and is fixed, or the fixed projection 7A is engaged with the fixed base portion 7 in the gap. By pressing against the side surface of the opposing pivot 4, the opposing bullet 6 is protruded inwardly from the opposing pivot 4 as shown in the enlarged view of the main part in FIG. Each of the above-mentioned opposing faces while covering a roll paper core receiver 2 with an open bottom like The shaft 4 to pivot by entering engaged as enlarged view in FIG. 1 the pivot hole 2A of the air-core receiving 2.
[0011]
Next, the opposed pivot shaft 4 provided with the roll paper air core receiver 2 pivotally mounted is used by arranging the upper portion thereof together with the air core receiver 2 as shown in FIG. As a fixing means, a locking hole of a connecting portion 1B (see the dotted line portion in FIG. 1 and FIG. 2) in which a locking collar 4A formed as shown in FIG. After engaging the tip of the opposing pivot shaft 1C against the inherent elasticity of the counter pivot shaft 1C, when the locking collar 4A protrudes from the locking hole edge 1A, the opposing pivot shaft 4 is restored to its original state to return to the locking hole edge 1A. As shown in FIG. 1 and an enlarged view of the main part thereof, the locking collar 4A can be engaged with a snapping so that the upper part of the opposing pivot 4 can be firmly attached to the lower part of the side body 1. The air core receiver 2 is opposed to the left and right side bodies 1 as shown in FIG. It is possible to return pivotally supported, it could be subjected to the retaining air-core receiving 2 in the lower flange 3.
[0012]
The configuration of the present invention is as described above, and the basic operation example will be described below.
First, the roll paper air core receiver 2 having the original shape as shown in FIG. 3 (a) is resisted against the linearization restoring elasticity of the opposed bullet piece 6 whose tip is closed, and the external force of the fingers or the like is used to prevent the roll of FIG. As shown in (c), the opposing bullet 6 is tilted forward and backward with respect to the fixed base 7 together with the opposing bullet 6 so that the opposing bullet 6 is alternately forward and backward in the air core receiver 2 as shown in the respective drawings. The roll paper can be deflected as a whole and stored with a strong linearization restoring elasticity. By releasing the tilting of the roll paper air core receiver 2, the roll paper can be recovered by the linearization restoring elasticity with respect to the fixed base portion 7 of the opposed bullet piece 6. As shown in FIG. 3A, the air core receiver 2 could be returned to its original state in a neutral projecting state substantially parallel to the fixed base 7.
[0013]
Here, after the opposing bullet 6 is deformed as a whole with respect to the fixed base portion 7 against the straightening restoring elasticity, the opposing bullet 6 is restored to its original shape by the restoring elasticity. The self-opposing return operation of the opposing bullet 6 will be examined in detail.
The opposing bullet piece 6 resists its linearization restoring elasticity, and the external force applied to the roll paper air core receiver 2 causes the fixed base 7 to be knitted as shown in FIGS. 3 (b) and 3 (c). However, when each of the opposing bullets 6 in the vicinity of the fixed base 7 is bent and bent separately in the front and rear directions, two large and small forced bent portions 6A and 6B are generated as shown in the respective drawings. Of these bent portions, Each of the forced bending portions 6A and 6B has its own straight line by pressing the inner surface of the inner small diameter forced bending portion 6A strongly outwardly as shown in the drawings. It is in the state where two strong linearization restoration elasticity more than the conversion restoration elasticity is stored.
[0014]
At the same time, in the forced bending portion 6B having a small inner diameter, a surplus length based on the difference in the bending diameter is generated and pushed near the tapered end of the opposed bullet piece 6. As a result, the vicinity of the tapered end is the above-described FIG. As shown in FIG. 3 (c), it bulges outward partially against the linear holding and repelling force, and a bulging bent portion 6C is formed to absorb the excess length, and the bulging bent portion 6C also As a whole, the opposing bullet piece 6 having a substantially U-shaped and closed tip is stored in an alternating manner as shown in each of the above figures, so that there are a total of three straight lines for each so-called “Kuneri flexure” deformation. It is in a state where it has accumulated its resilience.
Then, by releasing the tilting of the opposing bullet 6 by releasing the external force of the roll paper core receiver 2, the roll paper air core receiver is provided with a total of three strong linearization restoring elasticity stored in the forced bent portions 6A and 6B and the bulging bent portion 6C. As shown in FIG. 3 (a), 2 was able to be returned to the original predetermined position that was neutrally projected substantially parallel to the fixed base 7.
[0015]
Further, the tapered flat ring-shaped opposing bullet piece 6 according to the present invention performs an operation of overall “Kneri deflection” deformation and self-neutral protrusion return in the front-rear direction as shown in the respective drawings by the external force and the release thereof. Although the repetition is repeated alternately, the bending stress applied to the opposing bullet 6 is not concentrated locally because the bending stress applied to the opposing bullet 6 is distributed in an alternating normal and reverse manner. Therefore, the bending forces 6A and 6B and the bulging bent portion 6C are not subjected to concentrated bending stresses on the inner and outer forced bending portions 6A and 6B. Even if the operation of returning the self-neutral protrusion after being alternately bent while alternately bending the opposing bullets 6 as a whole is repeatedly performed over a long period of time, the forced bending portion 6B is bent. But Kazu, the "permanent set" does not occur in the opposite bullets piece 6.
[0016]
The basic operation of the self-facing return roll paper air core receiver 2 in the present invention is as described above. Next, the operation as the roll paper holding device will be described in detail.
As shown in FIG. 1, the roll paper R is inserted from the front between the air core receivers 2 in a self-returning return state at a substantially right angle to the lower portions of the left and right side bodies 1 in the roll paper holder H. When the core tube or the air core r is pivotally set to the air core receivers 2 as shown in FIGS. 1 and 4, the air core receivers 2 that have been self-returning to each other in advance are used as straight lines of the opposing bullets 6. When the roll paper is moved backward while tilting and tilting backward as shown in FIG. 5 against the roll restoring elasticity, the right and left opening edges of the roll paper core tube or the air core r face the air core receiving tip. As shown in FIG. 4, the left and right roll paper core receivers 2 can be made to enter the core tube or the air core r as shown in FIG. Against the above figure And it could be pivoted set as in FIG.
[0017]
In order to remove the used roll paper core tube r from the roll paper holder H, the left and right roll paper core receivers 2 that have entered the empty core tube r are resisted against the self-opposing protruding elasticity. Then, as shown in FIG. 6, the empty core tube r is pulled forward while being tilted obliquely forward, so that it can be removed from the roll paper holder H. At the same time, each of the air core receivers 2 returns to its original state as described above. The new roll paper R can be pivotally set as shown in FIG.
[0018]
【Example】
As a means for fixing the opposing bullet 6 used in the present invention to the opposing pivot 4, in addition to the above-mentioned fixing means, for example, a well-known male screw with a washer or bonding is used to fix the fixed base 7 of the opposing bullet 6 to the opposite pivot. The roll paper holder H according to the present invention has a plane contour shape that is substantially “Y” in plan and is also naturally known in the conventional side-by-side integrated roll paper holder H. Can be applied.
Further, as the front edge edge P1 of the paper cutting plate P, for example, a flexible cutting edge plate which is injection-molded in a comb-like shape with a flexible elastic plastic which is gentle to fingers such as polyester elastomer and has a large surface friction is attached. In this case, the protruding surface dimension of the cutting edge P1 is about 2 to 3 mm, the thickness of each cutting edge is about 0.5 to 3 mm, and the protruding pitch of each cutting edge is about 1 to 3 mm. It is preferable.
[0019]
【The invention's effect】
Since the present invention adopts the above-described form, the following effects can be obtained.
According to the first to fourth aspects of the present invention, when pivotally supporting the self-returning roll paper core receiver on the left and right side bodies of the roll paper holder H, respectively, A fixed base portion of a tapered flat ring-shaped opposing bullet is provided to prevent it from coming off, and this opposed bullet is covered with a roll paper air core receiver that is open at the bottom, and this opposed hole is engaged with the opposed pivot. By engaging the locking collar protruding from the upper part of the pivot with the locking hole edge formed at the lower part of the side body, the opposing pivot is attached to the lower part of each side body, Since the roll paper air core receiver can be pivotally supported so as to be able to return to the opposite position by a plurality of strong linearization restoring forces generated on the opposed bullet pieces, each roll paper air core receiver 2 can be easily and securely operated with the roll paper R by one-hand operation. Can be pivotally set to the left and right Even if the used core tube r is removed at random, each roll paper air core receiver 2 has an excellent effect that it always returns to the exact original position. Can be fixed to the locking hole edge 1A at the bottom of the side body with a single touch, so that the opposing pivot 4 having the roll paper air core receiver 2 can be attached to the lower part of the side body 1 with a simple configuration. There is also an industrial effect that the assembly workability is greatly improved.
[0020]
Further, since the opposing bullet 6 used in the present invention is formed of a flexible restoring elastic material in a tapered flat ring shape, the whole of the front and rear direction by the repetition of the external force applied to the roll paper core receiver 2 and the release thereof is repeated. The bending stress applied to the opposing bullet 6 is alternately distributed throughout the opposing bullet 6 every time the repeated “Kneri deflection” deformation and self-neutral protrusion return are repeated. On the other hand, since it moves while deforming, excessive bending stress is not concentrated on each of the inner and outer forced bent portions 6A and 6B and the bulged bent portion 6C. Even if the operation of returning the self-neutral protrusion is repeatedly performed many times over a long period of time after bending alternately, the above-mentioned bent portions are not bent and the opposing bullets 6 Straightening restoration elasticity Since the so-called "permanent set" does not occur, even there excellent effect that obtained by its original state restored to a predetermined opposing projecting position over the roll paper air-core received 2 long term.
[0021]
According to the invention of claim 5 according to the present invention, in addition to the above effects, a retaining projection 7A is provided at the tip of the fixed base portion 7 of the opposing bullet piece 6, and the retaining projection 7A is disposed on the opposing pivot. Since the opposing bullet 6 is prevented from coming off the opposing pivot 4 by being brought into elastic contact with the side surface of the opposing pivot 4, the opposing pivot 4 can be deformed even if the opposing deformation of the opposing bullet 6 and its linearization restoring operation are repeated many times. Thus, the effect that the opposing bullet 6 is not removed from the slab and can be used stably for a longer period of time can be added.
[0022]
According to the invention of claim 6 according to the present invention, in addition to the effects described above, the rear end of the roll paper holder H is placed on the upper front outer peripheral surface of the roll paper R that is rotatably supported by the roll paper air core receiver 2 at the air core r. The lower side of the front side of the paper cutting plate P pivotally supported by the side left and right pivots is pressed into contact with the lower side of the front side of the paper cutting plate P. Therefore, it is possible to produce a roll paper holder H that is easy to use and can be produced easily and in a large amount at a low cost. According to the invention of No. 7, since the opposing bullet 6 is injection-molded into a tapered flat ring shape using a polyester elastomer, the roll paper for self-opposing return that can maintain the linearization restoration elasticity of the opposing bullet 6 more stably for a long period of time. Retention It could be added to the effect that the location can be inexpensively in large quantities production.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an example of an embodiment of the present invention and an enlarged view of a main part thereof. FIG. 2 is an exploded perspective view before assembly of a roll paper holding device according to the present invention. FIG. 4 is a cross-sectional plan view showing an example of the operation of using the roll paper air core receiver in the present invention. FIG. 5 is a cross-sectional plan view showing a state different from that shown in FIG. ] Cross-sectional plan view with different state from that shown in FIG.
H roll paper holder 1 roll paper holder side body 1A side body locking hole edge 2 roll paper air core receiver 2A air core holder pivot hole 3 opposing pivot lower arm 4 opposing pivot 4A opposing pivot locking collar 5 opposite Axial notch 6 Tapered flat ring-shaped opposing bullet 6A, 6B Forced bent portion 6C of opposing bullet 7 Bending bent portion 7 of opposed bullet 7 Fixed base 7A of opposed bullet R Fixed base protruding stopper R Rolled sheet r Roll paper core or core tube P Paper cutting board P1 Front edge of paper cutting board

Claims (7)

In order to pivotally support the self-returning roll paper core receiver on the left and right side bodies of the roll paper holder, a fixed base portion of an opposing bullet shaped in a tapered flat ring shape is fixed to the opposing pivot shaft with a lower collar. An engagement member is formed in a state where a roll paper air core receiver with an open lower portion is put on a piece, and a locking collar projecting from the upper portion of the opposite pivot is formed at the lower portion of the side body with the pivot hole being engaged with the opposite pivot. By engaging with the perforation edge, the opposing pivot is attached to the lower part of each side body, and a roll paper air core receiver is pivotally supported on each side body so that it can be returned to the opposite side by the straightened restoring elasticity of the opposing bullet. Roll paper holding device. In a roll paper holding device in which a roll paper air core holder 2 which is self-opposing and returning is pivotally supported on the left and right side bodies 1 in a substantially U-shaped roll paper holder H, in a middle notch 5 of an opposing pivot 4 having a lower collar 3. An opposing bullet 6 formed into a tapered flat ring shape with a flexible restoring elastic material is provided with a fixed base 7 so as to be able to bend and bend within the range of the notch 5, and a lower opening roll is provided on the opposing bullet 6. In the state where the paper empty core receiver 2 is covered and the pivotal support hole 2A is engaged with the opposing pivot 4, the locking collar 4A protruding from the upper part of the opposing pivot 4 is connected to the locking hole edge 1A of the lower side body. , The opposing pivot shaft 4 is attached to the lower part of each side body, and the roll paper air core receiver 2 is pivoted to each side body 1 so as to be able to return to the opposite side by the straightened restoring elasticity of the opposing bullet piece 6. A roll paper holding device. In a roll paper holding device in which a self-opposing return roll paper core receiver 2 is pivotally supported on each of three side bodies 1 in a horizontally adjacent integrated roll paper holder having a substantially Y-shaped plane, a counter pivot 4 having a lower collar 3 is provided on the opposite pivot 4. An opposing bullet 6 formed into a tapered flat ring shape with a flexible restoring elastic material is provided so as to be bent and bent by its fixed base 7 so as to be able to be bent, and this opposed bullet 6 is covered with a roll paper air core receiver 2 that is open at the bottom, In a state where the pivot hole 2A is engaged with the opposing pivot shaft 4, the locking collar 4A protruding from the upper portion of the opposing pivot shaft 4 is engaged with the locking hole edge 1A formed at the lower portion of the side body 1. As a result, the opposing pivot 4 is attached to the lower part of each side body, and the roll paper air core receiver 2 is pivotally supported to each side body 1 so as to be able to return to the opposite side by the straightened restoring elasticity of the opposing bullet piece 6. Roll paper holding device. The opposing bullet 6 in the roll paper core receiver 2 is tilted by an external force against its straightening restoring elasticity, so that the opposing bullet 6 has two forced bent portions 6A and 6B and one bulged bent portion 6C. Are formed, and the opposing bullet 6 is bent and bent, and then the opposing bullet 6 is released from the tilting so that the forced bending portions 6A and 6B have their linearized restoring elasticity and the bulging bent portion. 4. The counter bullet 6 can be returned to its original state by the total of three linearization restoration elasticity, which is the sum of 6C itself and the linearization restoration elasticity, according to any one of claims 1 to 3. Roll paper holding device. A retaining protrusion 7A is provided at the front end of the fixed base 7 of the opposing bullet 6 and the retaining protrusion 7A is brought into elastic contact with the side surface of the opposing pivot 4 so that the opposing bullet 6 against the opposing pivot 4 is provided. The roll paper holding device according to any one of claims 1 to 4, wherein the roll paper is prevented from coming off. As the roll paper holder H, the roll paper R was pivotally supported by the left and right pivotal portions on the rear side of the roll paper holder H on the upper front peripheral surface of the roll paper R rotatably supported by the air core r in the roll paper air core receiver 2. A roll paper holder is used in which the lower side of the front side of the paper cutting plate P is pressed and the feeding portion of the roll paper R fed forward through the lower side of the front side can be cut by the front side cutting edge P1 of the paper cutting plate P. The roll paper holding device according to any one of claims 1 to 5, wherein the roll paper holding device is provided. The roll paper holding device according to any one of claims 1 to 6, wherein an opposing bullet 6 obtained by injection-molding a polyester elastomer is used as the opposing bullet 6.

Images