JP2018187910A - Cellular cushioning material volume reduction apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cellular cushioning material volume reduction apparatus which is low cost, does not use sharp cutting tools, needles, or nails which may injure the human body, is easy to handle, and can be applied to mass production of a large sized industrial product but also as a household small general-purpose product.SOLUTION: The cellular cushioning material volume reduction apparatus is provided with: a drilling roller which is formed into a cylindrical shape by fixing a plurality of triangular projection-bearing circular plates provided with a plurality of non-sharp triangular projections on outer peripheries thereof to a shaft by holding spacers therebetween; a receiving base or a receiving roller which has concave grooves which a part of tips of the triangular projections of the drilling roller enter; and a separation plate which separates a volume-reduced cellular cushioning material from the drilling roller. Thereby, transportation of the cellular cushioning material, drilling of air reservoirs, compression, and separation from the drilling roller are conducted.SELECTED DRAWING: Figure 1

Description

A bubble cushioning material is used as a packing material when carrying a load.
This creates a cylindrical air pocket in which air is confined with two resin sheets, and realizes the function of a cushioning material with the air pressure. There are various names such as air packing, air cap, bubble wrap and the like.
In the present invention, this is referred to as a bubble cushioning material, and a cylindrical portion having a circular bottom surface confining the air is referred to as an air reservoir.

  The details of the structure of the bubble cushioning material and the disadvantage that it is useful but bulky after use, and that volume reduction is desired, are described in detail in Patent Documents 1 to 12, etc. Since it is a known fact, details of the present invention will not be described in the present invention, but the present invention relates to a volume reducing device for the bubble cushioning material.

Various devices have been proposed for reducing the volume of foam cushioning materials, but all of these devices are large, complex, difficult to manufacture and unsuitable for mass production, and more compact and inexpensive for home use. There are no products at the time of filing this application.
In order to make it easier to understand the characteristics of the bubble buffer material volume reducing device of the present invention, which will be described later, the following is a summary of what problems are associated with the conventional bubble buffer material volume reducing device that has actually been published.

Patent Document 1 also requires a mechanism for press-contacting an opposing roller or plate, using a rotating roller for drilling provided with needle-like protrusions on the peripheral surface in order to make a hole in the bubble cushioning material.
This method has the following drawbacks.
(1) Although there is no mention of a specific method of manufacturing a rotating roller for drilling provided with a large number of needle-like protrusions, it can be easily estimated by those skilled in the art that it takes time and cost and is not easy.
(2) Since a large number of needle-like protrusions are used, there is a risk of damaging the human body. Care is required in handling at all stages from manufacture of the device to operation, maintenance, and disposal of the device, resulting in poor workability.
(3) It is a large-scale device that requires a bubble buffer material feeding means, a compression roller with a heat source for compression, a motor as a device drive source, and the like, and it is difficult to reduce the size and mass production.

Patent Document 2 uses a pair of upper and lower roller cutters to form a cut in the bubble cushioning material.
This method has the following drawbacks.
(1) Although there is no mention of a specific method for manufacturing the roller cutter, it can be easily estimated by those skilled in the art that it is not easy and costly to configure with a large number of blades.
(2) Since the blade is used, there is a risk of damaging the human body. Care is required in handling at all stages from manufacture of the device to operation, maintenance, and disposal of the device, resulting in poor workability.
(3) It is a large-sized device that requires a feeding roller as a bubble cushioning material feeding means, a compression roller for compression, a motor as a drive source, etc., and it is difficult for those skilled in the art to reduce the size and mass production. If there is, it can be estimated easily.

Patent Document 3 uses a pair of upper and lower roller cutters to form a cut in the bubble cushioning material.
This method has the following drawbacks.
(1) Although there is no mention of a specific method for manufacturing the roller cutter, it can be easily estimated by those skilled in the art that it is not easy and costly to configure with a large number of blades.
(2) Since a large number of needle-like protrusions are used, there is a risk of damaging the human body. Care is required in handling at all stages from manufacture of the device to operation, maintenance, and disposal of the device, resulting in poor workability.
(3) It is a large device that requires a roller part having a bubble cushioning material feeding function and a compression function, a motor as a drive source, etc., and it is difficult for those skilled in the art to reduce the size and mass production. Can be estimated.

Patent Document 4 is a top plate and a movable plate on which a large number of needles are arranged. A hole is made by sandwiching the bubble cushioning material, and the air is compressed by pushing out the compressed air, and the reduced bubble cushioning material is pushed back by punching metal from the needle. It is something to remove.
This method has the following drawbacks.
(1) Although there is no mention of a method of installing a large number of needles on the top plate or a specific method of passing all the needles in correspondence with individual holes of the punching metal, it is costly and troublesome to actually manufacture. Those skilled in the art can easily estimate that it is not easy to apply.
(2) Since a large number of needles are used, there is a risk of damaging the human body. Care is required in handling at all stages from manufacture of the device to operation, maintenance, and disposal of the device, resulting in poor workability.
(3) It seems to be quite difficult to remove the punching metal once and return it to the original state during maintenance at the time of failure.

(4) The larger the top plate area, the thicker it is necessary to ensure the rigidity to prevent the punching metal from bending, and the length of the needle must be increased accordingly, and the strength of the needle must be increased. is there.
(5) It is a large device that also requires a motor as a device drive source, and it is difficult to reduce the size and mass production, and it is easy to estimate by a person skilled in the art that the proposal is difficult to put into practical use as a whole. it can.

In Patent Document 5, the peripheral surfaces of two rollers are convex gears, or stars, or needles are implanted or crumpled so that they mesh with each other in a state of maintaining a constant gap between each other. The material is cut or crushed.
This method has the following drawbacks.
(1) Although there is no mention of a specific method of manufacturing a roller, the accuracy for maintaining a constant gap between the two rollers in any of a convex gear shape, a star shape, a needle implantation, and a hull shape However, it can be easily estimated by those skilled in the art that it is necessary and costly and laborious.

Further, the above is an operation to grind the bubble cushioning material, and since a residue of the bubble cushioning material is generated on the roller, a scraping portion is necessary.
Furthermore, it is possible to cope with a certain gap by the thickness of the two layers of the bubble cushioning material, and it is not possible to process a plurality of arbitrary layers, and it is necessary to prevent the foam cushioning material from being stacked on the plurality of layers. .
(2) The above operation requires a large force and is a large apparatus requiring a motor as a drive source, and it can be easily estimated by those skilled in the art that miniaturization and mass production are not easy.

Patent Document 6 uses a rectangular plate with a nail or a sharp blade and a peeling plate in which a passage hole is formed to pass through the bubble cushioning material after perforating. .
This method has the following drawbacks.
(1) There is no mention of a method of installing a large number of nails or blades on a rectangular plate, or a specific method of passing all the nails or blades in correspondence with the passage holes of the peeling plate, but in actual production It can be easily estimated by those skilled in the art that the cost and labor are not easy.
(2) Since nails or blades are used, there is a risk of damaging the human body, and handling is necessary at all stages from manufacture of the device to operation, maintenance, and disposal of the device, resulting in poor workability.
(3) It seems that it is quite difficult to return to the original state after removing the peeling plate once during maintenance at the time of failure.

(4) As the peeling plate becomes larger, various problems due to bending occur. Therefore, it is necessary to increase the thickness of the nail or the blade so as to ensure rigidity so as not to bend. Their strength also needs to be increased.
(5) It is a large device that also requires a motor as a device drive source, and it is difficult to reduce the size and mass production, and it is easy to estimate by a person skilled in the art that the proposal is difficult to put into practical use as a whole. it can.

According to Patent Document 7, the crushing part rotates the crushing blade to crush the bubble cushioning material, and this method has the following drawbacks.
(1) Although there is no mention of a specific method for crushing the bubble cushioning material by rotating the crushing blade, it is not particularly novel and it is unclear whether it actually works well.
(2) Since the blade is used, there is a risk of damaging the human body. Care is required in handling at all stages from manufacture of the device to operation, maintenance, and disposal of the device, resulting in poor workability.
(3) It can be easily estimated by a person skilled in the art that manufacturing is costly and labor-intensive and not easy.
(4) It is a proposal regarding a system for processing a processing method after crushing at a crushing section, and it is a large-sized device that requires a large force and requires a motor or the like as a device drive source. Those skilled in the art can easily estimate that the production and mass production are difficult.

In Patent Document 8, in order to remove air from the air pocket of the bubble cushioning material, the air pocket of the bubble cushioning material is pinched and ruptured by convex and concave grooves respectively provided on the two rollers.
This method has the following drawbacks.
(1) Although it is described that a roller can be manufactured relatively easily because a cylindrical blank is manufactured by cutting with a lathe, the larger the roller, the more difficult it is to manufacture.
(2) Since the entire roller is made of metal, the weight increases, making it unsuitable as a household device.

(3) Since the air pocket of the bubble cushioning material is pinched and ruptured, it is essentially important to manage the distance between the two rollers, and the gap is set to be processed without overlapping the bubble cushioning material. In some cases, it does not function in a stacked state, such as a 4-layer stack or a 16-layer stack. (4) Two rollers are always required, resulting in large size and high cost.
(5) Since a large force is required to rotate the roller, the power of a motor or the like is necessary, and it can be easily estimated by those skilled in the art that miniaturization and mass production are difficult.

(6) Since the optimum value of the dimensions of the convex and concave grooves is determined according to the shape of the bubble cushioning material, specifically the diameter of the air pocket of the bubble cushioning material, general diameter dimensions of 7 mm, 10 mm, 20 mm, A roller that can handle all 32 mm is not obtained, and it is necessary to change the roller for each target shape.
(7) A guide member is required, and its position is a place where volume reduction processing is not performed. That is, it is impossible to achieve 100% of the objective function of crushing the air pocket of the bubble cushioning material because of the configuration of the apparatus.

(8) The basic configuration of the roller does not have a function of moving the bubble cushioning material, and a surface groove extending in the axial direction of the roller is added so that the bubble cushioning material can be entrained in the roller facing portion and discharged from the roller facing portion. However, the surface grooves extending in the axial direction are required so as to require smooth movement, and there is a high possibility that the portion corresponding to that portion is not subjected to volume reduction treatment.
At the same time, it becomes difficult to manufacture rollers as the number of surface grooves extending in the axial direction increases.

(9) Even if a surface groove extending in the axial direction is provided, the function of moving the bubble cushioning material is weak by itself, and the structure of the device is such that the bubble cushioning material is moved from top to bottom using gravity. Since a space for the bubble cushioning material after processing is required at the lower part of the apparatus, it can be easily estimated by those skilled in the art that the apparatus becomes larger correspondingly.

In Patent Document 9, a wire brush is planted on the outer peripheral surface of a roller, and a hole is made in the bubble cushioning material with a tip of the wire brush sandwiched between the rollers.
This method has the following drawbacks.
(1) Although there is no mention of a specific method for manufacturing the roller, it is easy for a person skilled in the art to estimate that it is costly and troublesome and not easy.
(2) Since the same wire brush as the needle is used, there is a risk of damaging the human body. Care is required in handling at all stages from manufacture of the device to operation, maintenance, and disposal of the device, resulting in poor workability. .

(3) In the proposed method, the wire brush does not always penetrate the mesh hole, and even when the tip of the wire brush comes into contact with the mesh, the wire brush is an elastic wire, so it rotates and runs in a bent state. When you leave the guide part, it returns to the original straight state, but if you use the wire brush for a long time, the bending of the wire brush will not return to the original, it is common to lose its waist and use it, If a wire brush is used with a strong force in the direction of bending as in Patent Document 9, its life is short, and it is easily imagined that it cannot be used in a short period of time. It cannot be said that it is typical.

(4) Since the tip of the peeling portion is also disposed so as to be embedded in the wire brush of the perforating roller portion, the portion of the wire brush that is always in contact with it immediately loses the perforating function and pulls the bubble cushioning material. It is considered that the portion located in the peeled portion is not perforated, and is not a practical plan.

(5) Considering the strength or elasticity of the wire brush, it is unlikely that the foam cushioning material stacked in multiple layers can be processed, and it is necessary to prevent the foam cushioning materials from being overlapped.
If it corresponds to the bubble cushioning material stacked in multiple layers, the wire brush needs to be stiff enough not to bend easily, and of course, the net part facing it also needs to have appropriate strength. However, it is inconsistent with one of the points of the present plan, “Because the wire brush is an elastic wire, it rotates in a bent state and returns to the original straight state when it leaves the traveling guide part”.

(6) Since the tip of the wire rod of the brush-like member is pierced, the air of the convex portion of the bubble cushioning material is released. However, since the wire brush itself does not have a compression function, This is due to the pressing of the discharge roller part, and the discharge roller part is considered to be indispensable, and a large apparatus that requires a large force and requires a motor or the like as a drive source in order to operate as in Patent Document 9 as a whole apparatus Thus, it is difficult to reduce the size and mass production, and it can be easily estimated by those skilled in the art that the proposal is difficult to put into practical use as a whole.

Patent Document 10 uses at least one roller cutter to cut or tear the bubble cushioning material.
This method has the following drawbacks.
(1) The roller cutter is to cut the metal roll and provide a blade or use a commercially available cutter, but the former is heavy, expensive, not suitable for mass production, and the latter. Because of this, there are large restrictions and the degree of freedom in device design is small, so it is not possible to manufacture everything from household to industrial devices.
(2) Since the blade is used, there is a risk of damaging the human body. Care is required in handling at all stages from manufacture of the device to operation, maintenance, and disposal of the device, resulting in poor workability.
(3) A mechanism for adjusting the gap between the two rollers and a mechanism for changing the rotational speed of the two rollers are required, which complicates the apparatus and requires a large force to operate the apparatus. Therefore, it is difficult to reduce the size and mass production.

At first glance, Patent Document 11 seems to be similar to the present invention at first glance, but in reality, the operation principle, effect, feasibility, etc. are completely different from the present invention due to the following analysis. I understand.
In Patent Document 11, in order to make a hole in the bubble cushioning material, the bubble cushioning material is perforated by a rotating body opposed to a drilling rotating body provided with needle-like protrusions on the peripheral surface.
The description is vague on the whole, and there are many unclear points about the operation principle and actual operation of drilling, and it is unknown whether drilling, compression volume reduction, and discharge operations are actually performed well for bubble cushioning materials. However, this method has the following disadvantages when it is interpreted including the guess from the described contents.

(1) Although there is no description of a specific method of manufacturing the first rotating body for drilling provided with a large number of needle-like protrusions, it takes time and cost, and it is easy for those skilled in the art to understand that this is not easy. Can be estimated.
(2) The perforation of the bubble cushioning material is due to the needle-like protrusions only, the tip must be sharp, and there is a risk of damaging the human body because a large number of needle-like protrusions are used. Care is required in handling at all stages from operation, maintenance, and disposal of the equipment, and workability is poor.

(3) Although the principle of the drilling operation by the first rotating body and the second rotating body is not clearly described,
(A) The needle of the first rotating body pierces the protrusion of the bubble cushioning material, and the two sheets are pressed between the second rotating body.
(B) From the overall meaning of the text, it is understood that the second rotating body basically has no groove, but that the effect is increased when a ring-shaped groove is provided.
(C) Since the second rotator is rotated by the first rotator, this is the second as the needle of the first rotator pressed against the second rotator rotates. It can be understood that the rotating body of is rotated.
(D) Under the declaration that it relates to a volume-reducing device of a type in which a hole is made in the protrusion of the bubble cushioning material with a needle, there is almost no claim of novelty about the operation itself of the first rotating body and the second rotating body. Since there is nothing, the claim of novelty mainly relates to the guide plate and the protective plate, and the drilling operation itself is considered to depend on the published needle.
In view of the above items, it can be understood that the perforation principle of Patent Document 11 is to perforate the bubble cushioning material by pressing the tip of the needle of the first rotating body against the surface of the second rotating body.

In that case, the distance or positional relationship between the first rotator, the second rotator, and the guide plate should greatly affect the operation, but there is no mention of this, and the device as actually proposed is proposed. Is wondering what works.
For example, in the actual operation, the non-moving guide plate and the moving bubble cushioning material are sandwiched at the same time by the first rotating body and the second rotating body, but whether or not the four elements are in contact with each other. The strength of the required force and the distance relationship are important, but the feasibility of the described operation with little mention is unknown.

Alternatively, the two sheets are pressed between the first rotating body and the second rotating body, whereby the air in the protrusion is discharged and reduced in volume. For this purpose, the second rotation is performed. The body and the guide plate need to be in close contact with each other and a constant pressure must be applied. In this case, the friction between the guide plate that does not move and the bubble cushioning material is large, and it is difficult to discharge the bubble cushioning material with the needle of the first rotating body. It is.
On the contrary, when the second rotating body and the guide plate are not in close contact with each other, it is difficult to reduce the volume by discharging air even though the bubble cushioning material can be perforated and moved.

  Furthermore, the needle of the first rotating body is pressed against the surface of the hard second rotating body, or the surface of the second rotating body is made elastic so that the needle of the first rotating body is stuck. It is not specified, and the important point as a bubble buffer material volume reduction device is unknown, and it is doubtful whether the claimed operation can be performed well.

(4) There is an explanation that the needle is stuck between the two rotating bodies and the needle pierces the protrusion of the bubble cushioning material and is pressed to discharge the air in the protrusion and reduce the volume. Since there is a guide plate, even if air is discharged, the compression effect is limited because it is limited by the thickness of the guide plate around the needle.
In addition, it is considered that the upper and lower sheets of bubbles do not adhere to each other, so that the volume is restored to a certain level by the restoring force of the bubble cushioning material itself.

(5) Since there is no mechanism for adjusting the distance between the first rotating body, the second rotating body, and the guide plate, the thickness of the pressed bubble cushioning material needs to be constant, and the thickness is larger than that. It would be difficult to reduce the volume simultaneously by stacking any multiple layers.

(6) Although there is no reference to the thickness of the guide plate, the content of the proposal requires a thickness to obtain a certain rigidity, and it is necessary to lengthen the needle of the first rotating body accordingly. Measures to secure the strength of the needle are also required at the same time as the diameter of the rotating body is increased.
(7) When the bubble cushioning material is discharged and moved by the first rotating body, in the proposed shape of the guide plate, the tip and both ends of the bubble cushioning material do not come off the needle as they are, and the guide plate (lead plate) It is considered that there is a high possibility of being wound around the opening and moving to the back side and winding around the first rotating body.
(8) Those skilled in the art can easily estimate that the apparatus is a large apparatus that also requires a motor or the like as a device drive source, and it is difficult to reduce the size and mass production.

Patent Document 12 is such that in the presence of liquid or vapor, the bubble cushioning material is softened but heated to a temperature at which it is not completely dissolved, so that the air in the air reservoir can flow out from the heat seal part of the bubble cushioning material. That's it.
This method has the following drawbacks.
(1) Since a liquid and a heat source are used, the apparatus becomes large and the problem of waste liquid treatment also arises.
(2) Not suitable for downsizing and home use.

As summarized above, the published bubble buffer material volume reducing devices generally have the following problems.
(1) A large number of sharp blades, needles and nails are used to make holes in the air pocket of the bubble cushioning material, but when these are used as parts, the manufacturing cost is high, and they are fixed to a roller or flat plate. Those skilled in the art can easily imagine that it is not technically easy to do, but in practice, there is hardly any mention of the specific manufacturing method, and even if it mentions the blade, it is a lump of material. This is a complicated and costly method that makes the equipment heavier, such as by cutting with a lathe.
(2) When using sharp blades, needles or nails, in order to obtain effective reaction force and operate effectively, a roller or a roller or flat plate on which the bubble cushioning material is applied to the opposite side It is necessary to install the control boards facing each other, and an adjustment mechanism for optimizing the relative distance, the meshing form, the pressure, and the like is necessary, and the apparatus becomes complicated and large to realize.

(3) When using blades, needles or nails, there is a risk of damaging the human body, and handling is required at all stages of manufacturing, operation, maintenance, and disposal. It also increases the cost.
(4) In many cases, a compression unit for compressing and expelling air is necessary in addition to making a hole in the bubble cushioning material.

(5) Even if a mechanism for expelling air and compressing it after punching is provided, the upper and lower sheets of bubbles are not adhered, and in most cases, the volume is restored to a certain level by the restoring force of the material.
(6) The apparatus is large and requires a large amount of force to move it, which is difficult with human power and requires power such as a motor.

(7) The arrangement pattern of the air pockets of the bubble cushioning material that can be treated is limited, a plurality of bubble cushioning materials cannot be stacked, the direction in which the bubble cushioning material is charged into the apparatus is limited, the blade or the needle In many cases, the arrangement method of the perforated part itself has a defect, such as the interval between perforated parts such as nails and nails being unnecessarily narrow and the number of perforated parts increases accordingly.
(8) When the bubble cushioning material cannot be overlapped, it is necessary to increase the width of the device in order to cope with the wide bubble cushioning material, so that it is difficult to reduce the size.

As described above, the disclosed bubble cushioning material volume reduction device is actually difficult to implement, and even if it is feasible, it requires a lot of labor and must be manufactured as a custom-made product, which is expensive.
There are many things that are difficult to realize and that seem to be just ideas.
Incidentally, most final disposal of Patent Documents 4 to 12 is regarded as deemed withdrawal due to an unexamined request.

  In conclusion, there is no method for producing a foam cushioning volume reduction device that is inexpensive, applicable for industrial use, downsized as a general-purpose product, and can be used at home. .

Patent 2826628 Patent 4010235 Patent 4452852 JP-A-11-277297 JP 2001-191329 A JP 2001-191416 A JP 2003-260709 A JP2004-298845 JP 2006-168030 A JP 2010-29964 A JP2013-176728A JP 2001-277241 A

  The problem to be solved is that the structure is simple, and it is easy to manufacture and handle without using sharp blades, needles and nails that damage the human body. The aim is to obtain a foam cushioning volume reduction device that can be mass-produced as a general-purpose product that can be used at home.

The bubble cushioning material volume reducing device of the present invention has a plurality of triangular protrusion-equipped disks provided with a plurality of triangular protrusions in the periphery, and is fixed to a shaft via a spacer, and a perforated roller formed into a cylindrical shape. A driving means by a manual or driving device for rotating the rotating shaft of the perforation roller, a receiving base provided with a concave groove disposed to face the circular plate provided with a triangular protrusion of the perforation roller, or a receiving roller by the rotation roller And a separation plate for separating the bubble cushioning material from the perforation roller, and a part near the tip of the triangular protrusion of the perforation roller is disposed so as to enter the concave groove of the receiving table or the reception roller.
This simple structure is characterized in that the bubble cushioning material can be moved, pierced, compressed, pressed, and separated from the piercing roller.
Furthermore, the tip of the triangular protrusion does not need to be sharp, but rather dare to make it non-sharp, and push the bubble cushioning material between the groove of the cradle or the receiving roller and stretch it to make it exceed the elastic limit. This is characterized by the fact that it is possible to keep the volume-reduced state by pressure-contacting the bubble cushioning materials with each other. However, these conventional methods are not available.

  According to the present invention, it is easy to manufacture, can be mass-produced, safe and easy to handle, and inexpensive for industrial use. A container can also be obtained.

The best mode for carrying out the invention will be described below by way of examples.
However, the embodiments described below are merely “examples”, and from the viewpoint of those skilled in the art, there are various variations that can be easily changed, applied, derived, and analogized from the methods for realizing equivalent functions. However, as long as it is based on the principle indicated by the invention, they are all included in the scope of the present invention.

  Also, if there are cases where design values etc. are indicated by specific numerical values, this is only for the purpose of making the explanation easy to understand, and those skilled in the art can easily implement other values according to each target specification. These are all included in the scope of the present invention.

  In the description, there is a case where “required” is described. However, according to the present invention, it is possible to manufacture a bubble buffer material volume reducing device over a wide range from industrial use to household use. The required specifications are large depending on the number, size, processing capacity, and the dimensions, weight, durability, drive capacity, etc. Although different, the requirement necessary to satisfy each specification is expressed as “required”.

  Unless otherwise specified, the numerical unit shown in this document is the MKS unit system and the angle is [degree].

The bubble cushioning material volume reducing device according to the present invention is not only a bubble cushioning material having a general circular bubble, but also has no name as a general noun, but is called an air pillow type cushioning material etc. as a manufacturer name Also, it is possible to cope with a cushioning material in a form in which cylindrical bubbles are connected as shown in FIG. 48 or the like.
Since the bubble cushioning material volume reducing device of the present invention can also handle them, they are collectively referred to as a bubble cushioning material.

FIG. 1 shows an embodiment of a bubble cushioning material volume reducing device using a cradle 2 according to the first aspect of the present invention.
The separation plate 4 and the shaft 103 of the piercing roller 1 that can be rotated by the handle 5 are attached to the side plates 7 A and 7 B fixed to the bottom plate 6.
Although not shown, a bearing may be used to attach the shaft 103 to the side plates 7A and 7B.
The bottom plate 6 and the side plates 7A and 7B are indicated by chain lines because they can be easily manufactured by those skilled in the art regardless of their shapes and methods as long as they have a required function.
The cradle 2 is fixed to the bottom plate 6 with the groove 202 of the cradle 2 facing the disc 101 having the triangular protrusion of the perforating roller 1.

As shown in FIG. 2, the perforating roller 1 can be easily manufactured by fixing a plurality of triangular protrusion-equipped discs 101 through a shaft 103 serving as a rotating shaft through a spacer 102 having a predetermined thickness. It is.
The number of the triangular protrusion-equipped disks 101 may be arbitrarily determined according to the required width of the bubble cushioning material reducing device.

FIG. 3 shows a specific example of the triangular protrusion-equipped disc 101.
The triangular protrusion-equipped disk 101 is formed by providing triangular protrusions 101a at equal intervals on the outer periphery of a metal disk. Strictly speaking, it has a gear-like appearance instead of a disk, but it has a triangular shape on the outer periphery of the disk. In the sense that the projection 101a is provided, it is referred to as “a triangular projection-equipped disk”.
The number of the triangular protrusions 101a and the plate thickness t1 may be arbitrarily determined according to the specifications of the target bubble cushioning material volume reducing device.

Here, the triangular protrusion 101a is a portion that breaks through the bubble cushioning material, and the tip performs the function of the present invention even at an acute angle, but there is a risk of damaging the human body. It is called “triangular” projection in the sense that it may be trapezoidal.
Further, the triangular protrusion 101a is not an isosceles triangle as shown in FIG. 3, but the lengths of the two sides sandwiching the tip may not be equal as shown in the example of the triangular protrusion in FIG. It may be a curve. For example, it may be a curve like a gear tooth.
Furthermore, when the angle between the two sides sandwiching the tip is the vertex angle 101ab, the angle α may be any desired angle.
In the following, description will be given as a triangular protrusion having a fan-shaped isosceles triangle shape as a representative example.

In the following description, a circle centering on the center 101c of the triangular protrusion-equipped disc 101 and having a radius to the bottom of the triangular protrusion 101a is the inner circumference 101d, and the distance to the tip of the triangular protrusion 101a is the radius. And call the outer circle 101e,
Of the two sides sandwiching the apex of the triangular projection 101a, the side that precedes the rotational direction of the triangular projection-equipped disk is referred to as the front side 101aa.

The triangular protrusion-equipped disc 101 can be easily manufactured by stamping a stainless steel plate for a spring or a steel plate for a cutter, or by laser cutting. Alternatively, a material such as ceramics or a synthetic resin having a necessary strength may be used.
The major feature is that the triangular protrusion 101a does not require sharpness like a blade, needle, or nail, so there is no need for cutting, sharpening, etc. after die cutting, making mass production easy and low cost. It can be suppressed.

In addition, the size of the inner circumference 101d and the outer circumference 101e of the triangular protrusion-equipped disc 101, the shape and size of the triangular protrusion 101a, the size of the tip angle, and the like are required specifications for the bubble cushioning material reducing device. Depending on the specifications, the value should be set appropriately.
For example, when processing a large number of bubble cushioning materials, the inner circumference 101d and the outer circumference 101e are made larger, and if the number of layers is further increased, the difference in radius between the inner circumference 101d and the outer circumference 101e, that is, a triangular shape. The height of the protrusion 101a is increased.
Further, since the strength is also required when the number of layers is increased, it is possible to increase the vertex angle 101ab or use a material having high strength.

The rotation axis center 101c is the center of the circle of the triangular protrusion-equipped disk 101, and is also the rotation axis center when the rotation is incorporated in the punching roller 1 and rotated.
In this document, the center of the triangular protrusion-equipped disc 101 and the center of the rotation axis of the punching roller are hereinafter referred to as 101c.

The spacer 102 has a hole formed in the center thereof passed through the shaft 103 and can have any shape. Usually, the spacer 102 is a circular or regular polygonal plate in terms of beauty as a product and ease of manufacture. It is thought that there are many things. FIG. 5 shows a circular spacer 102 as a specific example.
Usually, the maximum distance from the center to the outer edge is made smaller than the radius of the inner circumference 101d of the triangular protrusion-equipped disc 101 so that the spacer contact portion 411 of the separation plate 4 described later can be received.

When the thickness t2 of the spacer 102 is the thickness t1 of the triangular protrusion-equipped disc 101 and the necessary interval between adjacent triangular projection-equipped discs 101 is W,
t2 = W−t1
And
The spacer 102 is for keeping the adjacent triangular protrusion-equipped discs 101 at a required interval, and since a large force is not applied in any direction, the material is light in weight as well as metal, and the workability is also good. A good synthetic resin or the like may be used.

For the above reason, as shown in the specific example of the triangular protrusion-equipped disk with spacer substitute claw in FIG. It is possible to use the spacer substitute claw 101j as a substitute for the spacer.
An example of application to the perforating roller is shown in FIG.
In FIG. 7, since the triangular protrusion-equipped discs 101 are all the same, the spacer substitute claw 101j of the triangular projection-equipped disc enters the hole of the spacer substitute claw 101j of the adjacent triangular projection-equipped disc. In order to avoid the problem, the mounting direction of the triangular protrusion-equipped disk on the shaft is alternately reversed.

The height of the spacer substitute claw 101j is the interval W between the triangular protrusion-equipped disks, and the thickness t1 of the triangular protrusion-equipped disk. T2 = W−t1
Shall be.
You may manufacture by the method of shape | molding the protrusion used as a substitute of a spacer other than the above integrally with a triangular-shaped protrusion-equipped disk.

In addition, as long as it has a function equivalent to the above-described perforation roller 1, it may be formed by a processing technique that can obtain molding or cutting, or other equivalent products, and may be used as the perforation roller 1.
The explanatory drawings used hereinafter will be described assuming that the triangular protrusion-equipped disc 101 and the spacer 102 are provided separately.

  The driving means for rotating the shaft 103 of the perforating roller 1 is not shown, but can be realized by combining gears, pulleys, belts, chains, and driving devices such as motors and engines in a large-scale device. Then, as shown in FIG. 1, the handle 103 may be provided on the shaft 103 and rotated manually, or although not shown, a spur gear, a worm gear or the like may be used. Since it can be easily realized, it will not be described in detail.

  The cradle 2 shown in a specific example in FIG. 8 is disposed so as to face the disc 101 having the triangular protrusion of the perforation roller 1, and as shown in the right side view of FIG. A concave groove 202 is provided in a direction perpendicular to the axis so that a part of the tip of the triangular protrusion 101a passes between the grooves, and when the bubble cushioning material is drilled and compressed, the bubble cushioning material receiving surfaces 201 on both sides of the groove 202 are provided. To receive and support the bubble cushioning material.

  In FIG. 1, a part of the tip of the triangular protrusion 101 a appears to overlap with the concave groove 202 of the cradle 2, but the perforation roller 1 sways in the direction of the rotation axis while operating the bubble cushioning material volume reducing device. Although there is a possibility that they are in contact with each other, as a principle of operation, it is not necessary to have a structure in which the intruded portions are brought into contact with each other, and it is not necessary to contact or press the tip of the triangular protrusion 101a against the bottom of the groove 202. It is a feature.

The shape of the cradle 2 described as a trapezoid in the front view of FIG. 8 may be an arbitrary shape such as a rectangle or an arc as long as the function is exhibited.
The material of the cradle 2 may be a synthetic resin, a metal, other materials having a required strength, or a combination thereof depending on use conditions and required durability.
The manufacturing method of the cradle 2 is created by cutting out a portion corresponding to the bubble cushioning material receiving surface 201 and a portion corresponding to the groove 202, respectively, like the perforating roller 1, and superimposing a plurality of them alternately. Alternatively, it may be formed as an integrated object by molding or cutting.

FIG. 11 shows the positional relationship between the triangular protrusion 101a, which is a place where the drilling operation is performed, and the cradle 2.
L1 is the height of the triangular protrusion 101a, L2 is the distance from the bubble cushioning material receiving surface 201 of the cradle 2 to the inner circumference 101d of the triangular protrusion 101a, and L3 is received from the tip of the triangular protrusion 101a. The distance to the bubble cushioning material receiving surface 201 of the table 2 is set.
In the foam cushioning material volume reducing device of the present invention, L2 is larger than the total thickness after perforation and compression in the case of the maximum value of the number of the layer of the foam cushioning material in the specifications of the foam cushioning material volume reduction device to be realized. L3 is set to a value larger than the stretch amount until reaching the elastic limit of the target bubble cushioning material, and L1 is set to a value equal to or larger than the added value of L2 and L3.
Those values may be set to required values according to the specifications.

  9 is a comb-like plate for separating the reduced bubble cushioning material from the perforation roller 1, and is fixedly installed near the perforation roller 1 in parallel with the rotation axis of the perforation roller. The separating teeth 401 are disposed between the triangular protrusion-equipped disc 101 and the triangular protrusion-equipped disc 101 of the perforating roller 1. The tip of the triangular protrusion-equipped disc 101 has a length extending beyond the inner circumference 101d of the disc 101 to the rotating shaft side, and the bubble cushioning material thus reduced passes between the perforating roller 1 and the separation plate 4. Therefore, the separation from the perforating roller 1 is ensured.

The connecting / fixing portion 402 is a portion where all the separating teeth 401 are connected, and is a portion that is fixed to the side plates 7A, 7B and the like by a required method.
The separation surface 403 is a part that contacts the bubble cushioning material and performs a separation operation, and details of the operation will be described later.

The back surface 404 is a surface opposite to the separation surface 403 and may have any shape as long as sufficient strength can be obtained within a range where there is no inconvenience such as hitting the perforating roller.
One example is shown in a side view of a specific example of the separation plate in FIG.
As shown in FIG. 1, the separating plate 4 does not need to be in contact with the perforating roller 1 or the cradle 2, and the material thereof may be synthetic resin or metal depending on the required durability performance.

The separation plate 4A is for separating the bubble cushioning material that has already pierced into the punching roller when it is necessary to reversely rotate the punching roller and return the bubble cushioning material to the insertion side during volume reduction. The same function may be used.
Further, the separation plate 4A is not essential as a bubble buffer material volume reducing device, and may be provided when necessary.
The separating plate 4A can also serve as a guide for guiding the bubble cushioning material to the perforating roller.

Based on the above description of each part, the outline of the volume reducing operation of the bubble cushioning material volume reducing device of the present invention will be described with reference to FIG.
When the bubble cushioning material 30 is inserted into the outer circumference of the perforation roller 1 and the cradle 2 and the bubble cushioning material receiving surface intersecting portion 203 according to the insertion direction and the perforation roller 1 is rotated in the illustrated rotation direction, the bubble cushioning material 30 is It is pulled in by the triangular protrusion 101 a of the punching roller 1 and moved to the groove 202 of the cradle 2.

When the perforation roller 1 is further rotated, the bubble cushioning material 30 is supported by the bubble cushioning material receiving surface 201 of the cradle 2, while the portion sandwiched between the triangular protrusion 101 a and the groove 202 of the cradle 2 is formed by the triangular protrusion 101 a. Since it is pushed toward the bottom of the groove 202, a stretching force is applied to the bubble cushioning material 30.
As the perforation roller 1 further rotates, the portion of the bubble cushioning material 30 that is pushed into the groove 202 is further stretched toward the bottom of the groove 202. When the elastic limit is exceeded, the bubble cushioning material 30 is eventually reached. Is pierced into the triangular protrusion 101a, and is further pierced so as to be penetrated to make a hole. If that portion is an air reservoir in the bubble cushioning material 30, it is compressed and the air is driven out.

  When the perforating roller 1 is further rotated, the bubble cushioning material 30 through which the triangular projection 101a has passed is moved in the discharge direction, and is separated from the triangular projection 101a by the separation plate 4 and discharged from the bubble cushioning material volume reducing device. .

Further, the details of the operation of the perforating roller 1 will be described with reference to FIG. 13 viewed from the same direction as FIG.
However, since the drilling operation of the present invention mainly depends on a change in the relative distance between the triangular protrusion 101a and the cradle 2, the triangular protrusion 101a is not a rotational movement, but a straight line from top to bottom for easy understanding. This will be explained in terms of movement.

Since the two sides sandwiching the apex of the triangular protrusion 101a are so-called C-shaped (tapered), the closer to the inner circumference 101d, the larger the hole width opened in the bubble cushioning material 30, and the bubble cushioning material Since the force required to penetrate is also increased, the force required to push up the bubble cushioning material 30 toward the inner circumference 101d of the triangular protrusion 101a from the bubble cushioning material receiving surface 201 side is also increased.
Therefore, if the apex angle α of the apex angle 101ab is set to an appropriate value, the bubble cushioning material 30 is moved toward the inner circumference 101d of the triangular protrusion 101a by the force required to compress the air pocket of the bubble cushioning material 30. The force required to push up from the cushioning material receiving surface 201 side can be increased, thereby compressing the air pocket of the bubble cushioning material 30 before the uppermost bubble cushioning material 30 is pushed up to the inner circumference 101d side. To expel air.

  In other words, the closer the triangular protrusion 101a is to the inner circumference 101d, the more difficult the bubble cushioning material 30 moves to the inner circumference 101d side, so that it is closest to the inner circumference 101d, that is, the uppermost bubble cushioning material 30. And the bubble cushioning material receiving surface 201 of the cradle 2 perform an operation of punching and compressing the air pocket of the bubble cushioning material 30 sandwiched therebetween.

  At this time, since the position of the uppermost bubble cushioning material 30 changes according to the thickness of the bubble cushioning material 30 and the number of stacked layers, the uppermost bubble cushioning material 30 and the cradle 2 for the compression operation are so-called. An automatic adjustment function of the interval between the bubble cushioning material receiving surfaces 201 is performed.

  If the triangular protrusion 101a is a needle or a nail, the friction is small, so that the uppermost bubble cushioning material 30 is moved toward the inner circumference 101d before the air pocket is compressed. Even if it is not compressed, or even if it is compressed, the finished dimension will not be less than the distance L2 from the bubble cushioning material receiving surface 201 of the cradle 2 to the inner circumference 101d of the triangular protrusion 101a in FIG.

  The magnitude of the apex angle α and the magnitude of the force required to compress the air pocket of the bubble cushioning material 30 by moving the triangular protrusion 101a are in a trade-off relationship. In the case of manual operation, it may be determined according to the specifications of the bubble buffer material volume reducing device, such as minimizing α to the necessary minimum.

  In the conventional method using a cutter, a needle, or a nail, the automatic adjustment operation of the interval as described above is not performed. Therefore, an adjustment unit that adjusts the interval between the portions corresponding to the perforation roller 1 and the cradle 2 while maintaining a constant pressure. Or a separate compression unit is required later.

The pressure-contact effect of the bubble cushioning material, which is a further feature of the present invention, will be described with reference to FIGS.
As already described, in the present invention, the perforating operation to the bubble cushioning material 30 is performed by exceeding the elastic limit. In general, the bubble cushioning material is made of polyethylene or polypropylene, and when the hole is perforated beyond the elastic limit, the perforated portion is in a ruptured state such as a crack 3001 in FIG.
Further, when viewed in a cross section, a thing that can be referred to as a small crushing and shrinking thread-like tearing protrusion 3002 appears.

When pressed at the tip of the triangular protrusion 101a as shown in FIG. 13, the tearing protrusion 3002 enters the tearing opening 3001 of the lower sheet, but these are entangled with each other as shown in FIG. It will be in the state of pressure contact.
At this time, since the air pocket of the bubble cushioning material is compressed and the air is expelled, as a result, even after the bubble cushioning material is separated from the perforating roller, the upper and lower sheets of the air pocket or a plurality of overlapping bubbles The cushioning materials remain pressed against each other in a state where air is expelled and compressed.
This means that the volume does not return due to the restoring force of the material as in the case of drilling with a needle or blade, which is one of the major features of the present invention.

As described above, according to the present invention, the movement of the bubble cushioning material 30 while the plurality of sheets are overlapped by only the perforation roller 1, the cradle 2, and the separation plate 4, the perforation, the compression of the air reservoir, and the pressure contact between the sheets The separation from the perforating roller 1 can be performed, and the bubbles are restored, and the finished thickness does not become larger than that at the time of compression or the degree thereof is small.
These are major features not found in the known conventional methods.
Furthermore, since the punching roller 1 and the cradle 2 do not have a portion in contact with each other and it is not necessary to strictly manage the size of the gap, fine precision is not required for production, and the relative positional relationship is fixed and can be adjusted well. Since the function is unnecessary and the degree of freedom of material selection is large, it is also a great feature that an extremely simple, small and lightweight bubble buffer material volume reducing device can be manufactured.

  Furthermore, since a sharp blade, a needle or a nail is not used for the drilling operation and there is no possibility of damaging the human body, it is also a great feature that it is easy to handle in all stages from manufacturing to operation, maintenance and disposal.

In addition, according to the present invention, the volume of the bubble cushioning material can be folded to reduce the volume, but this is important in terms of efficiency for industrial use, but it is larger than the width of the foam cushioning volume reduction device for household use. This is a great merit in that it can process the bubble cushioning material.
That is, it needs to be small for home use. For example, when the perforation roller 1 has a length of 20 Cm, even if a bubble cushioning material with a width of 1 m is folded three times into eight layers, the width becomes 20 Cm or less as it is. It is possible to process, and it is not necessary to bother to cut the bubble cushioning material within a width of 20 Cm.

  FIG. 17 shows the first aspect of the present invention in which a receiving roller 3 is used in place of the cradle 2, and the other components are the same as those in the first aspect of the bubble cushioning material volume reducing device according to the trigonometric method. It is the Example shown.

The receiving roller 3 is arranged so as to face the disc 101 having the triangular projection of the perforating roller 1 and the shaft is freely rotated. As shown in the right side view of FIG. 17, the receiving roller 3 is perpendicular to the rotational axis of the perforating roller 1. A concave groove 305 is provided in the direction, and a part of the tip of the triangular protrusion 101 a of the triangular protrusion-equipped disk 101 passes between the grooves 305.
The receiving roller 3 does not necessarily need to rotate for actually performing the punching operation, and the bubble cushioning material is caused by friction with the bubble cushioning material when the reduced bubble cushioning material is transferred to the discharge side by the rotation of the punching roller 1. It is only necessary that the receiving roller 3 rotates by being dragged.

  The functions of the bubble cushioning material receiving surface 304 and the groove 305 of the receiving roller 3 shown in FIG. 16 are the same as those of the bubble cushioning material receiving surface 201 and the groove 202 of the cradle, and the operation method and operating principle are almost the same as in the first embodiment. Therefore, detailed explanation is omitted.

  In FIG. 17, a part of the tip of the triangular protrusion enters the concave groove 305 of the receiving roller 3 and appears to overlap, but the perforation roller 1 is operated while operating the bubble cushioning material volume reducing device as in the case of the receiving table 2. Although there is a possibility that they come in contact with each other, the principle of operation is that it is not necessary to have a structure in which the intruded portions are brought into contact with each other.

The material of the receiving roller 3 may be a synthetic resin, a metal, or a combination of a synthetic resin and a metal depending on the use conditions and the required durability.
As shown in FIG. 16, the receiving roller 3 is manufactured in the same manner as the perforating roller 1, the roller plate 3.
It is sufficient that the 01 and the spacer 302 are alternately passed through the shaft 303 and fixed, or an equivalent product may be formed as an integrated object by molding or cutting.

  When Example 1 and Example 2 are compared, when the cradle 2 of Example 1 is used, the cradle is only fixed, so the structure becomes simple and the device is easy to manufacture and inexpensive. However, the portion that compresses the bubble cushioning material on the bubble cushioning material receiving surface 201 of the cradle 2 has a large amount of friction, is easily worn, and the force required to rotate the perforating roller 1 also increases.

When the receiving roller 3 according to the second embodiment is used, the number of movable parts increases and the structure becomes complicated.
On the other hand, since the friction of the bubble cushioning material receiving surface 304 that compresses the bubble cushioning material is reduced by the free rotation of the receiving roller 3, it is less likely to wear and the force required to rotate the perforating roller 1 is also reduced. .

  These can be used according to the conditions by appropriately selecting the structure and materials according to the required specifications of the processing capacity, durability, equipment dimensions, industrial or household use location, etc. It will be possible to produce an optimal device.

It is the 1st Example regarding the drilling position of the bubble buffering material volume reduction apparatus by Claim 2 of this invention.
In claim 1 of the present invention, even if the bubble cushioning material is inserted into the bubble cushioning material volume reducing device in any positional relationship or direction, the air pocket can be pierced and compressed without leakage, and a triangular protrusion is provided. Minimizing the number of plates 101 used is important for reducing the cost of the bubble buffer material volume reducing device.
In addition, since the pressing force required for each triangular projection 101a is almost the same in the drilling and compression processing for the bubble cushioning material, the number of triangular projections 101a involved in the drilling and compression is reduced simultaneously during the processing. Doing this also reduces the force required for processing, which in turn leads to lighter weight and lower costs associated with reduced load bearing performance of the device.

  In the conventional method, the arrangement pattern of the air pockets of the bubble cushioning material that can be processed and the direction in which the bubble cushioning material is charged into the apparatus are limited, and the interval between the punched parts such as the blade, the needle and the nail is unnecessarily narrow. Accordingly, the number of perforated parts is increased. However, Claim 2 of the present invention solves this.

In FIG. 18, a circle 3003 having a radius R is a circle on the bottom surface of the air pocket of the bubble cushioning material 30 (not shown), and an equilateral triangle inscribed in the circle 3003 is an inscribed equilateral triangle 3004.
In this case, the size A1 and the height H1 of one side of the inscribed equilateral triangle 3004 are A1 = (√3) · R = 1.732R, respectively.
H1 = (3/2) .R = 1.5R
It is publicly known.

Here, when the three apexes of the inscribed regular triangle 3004 are set as the drilling positions 3006, the bubble cushioning material 30 having the air pocket with the circle having the radius R as the bottom surface is drilled in a repeating pattern as shown in FIG. For example, at least one location is always perforated in all the air reservoirs.
This can be seen from the fact that when a circle having a radius R is drawn at an arbitrary position on the repetitive pattern in FIG. 19, at least one drilling position 3006 is necessarily included in the circle.

  In other words, the interval between the tips of the triangular protrusions 101a on the triangular protrusion-equipped disc 101 in the perforation roller 1 of claim 1 is inscribed in the circle 3003 on the bottom surface of the air pocket of the bubble cushioning material 30. The height of the equilateral triangle inscribed in the circle 3003 on the bottom surface of the air pocket of the bubble cushioning material 30 is set to be equal to or less than the length A1 of one side of the equilateral triangle 30b. The triangular shape of the adjacent triangular protrusion-equipped disc 101 is H1 or less, and is repeatedly perforated on the entire surface of the bubble cushioning material 30 in a pattern in which the apex of the triangle having the side and height of the dimensions is the perforation position 3006. The above-mentioned problem can be solved by arranging the triangular protrusion 101a by shifting the protrusion 101a by 1/2 A1 with respect to the rotation axis.

In addition, according to the above, not only a general bubble cushioning material in which the air reservoirs are arranged in a staggered manner, but also air reservoirs arranged in an arbitrary pattern can be accommodated, and the size of the circle covering the radius R If it is an air reservoir, the shape is not limited to a circle, and it is possible to obtain an effect that it is possible to deal with all the bubble cushioning materials having an air reservoir of an arbitrary shape.
Further, according to the above, perforation that reaches the elastic limit at the same time in the process of the perforation roller 1 as compared with the case where the triangular protrusion 101a of the adjacent triangular protrusion-equipped disc 101 is not displaced with respect to the rotation axis. Since the number of triangular projections 101a involved in compression is half the number of triangular projection-equipped discs 101, the necessary force can be reduced to nearly half.

  In particular, the number of the triangular protrusion-equipped disks 101 can be minimized in the case of a regular triangle having a side length of A1 and a height of H1, and an example of a method for realizing it is shown in FIG. The case will be explained.

The distance between the tips of the triangular projections 101a of the triangular projection-equipped disc 101 is A1, the distance between the tips of the adjacent triangular projection-equipped discs 101W is also A1, and the triangular projection-equipped discs 101 and 101W are Let the interval be H1.
At this time, when viewed from the front view of FIG. 1, the triangle of the adjacent triangular protrusion-equipped disc 101 </ b> W is formed at the center of the tip of the adjacent two triangular projections 101 a on the triangular protrusion-equipped disc 101. The triangular protrusion-equipped disc 101W is installed so that the tip of the projection 101a can be seen. If all the other triangular projection-equipped disks are repeated in the same manner, the length of one side is A1 and the height is H1. An equilateral triangular repetitive drilling pattern as shown in FIG. 19 can be obtained.
In the case of this example, when it is fixed to the shaft with a D-cut or a keyway, two types of discs with triangular protrusions are required, such as 101 and 101W.

  It is the 2nd Example regarding the piercing | piercing position of the bubble buffering material volume reducing apparatus by Claim 2 of this invention, and does not require two types of triangular-protrusion equipped disks of 101 and 101W like Example 3, and 1 FIG. 21 shows an example of a method for finishing with types.

In this example, the shaft hole 101b hole of the triangular protrusion-equipped disk 101 has a double D-cut shape, but the same applies to the case of a keyway or polygon.
The D-cut of the shaft hole 101b is provided symmetrically with respect to the diameter of the shaft, but is shown symmetrically in FIG.

The number of the triangular protrusions 101a of the triangular protrusion-equipped disk 101 is an odd number, but is shown as 15 as an example in FIG.
The distance between the tips of the triangular protrusions 101a of the triangular protrusion-equipped disk 101 is A1.
The relative positions of the D-cut of the shaft hole 101b and the triangular protrusion 101a are arbitrary, but in order to make the explanation easy to understand, the triangle is placed on the vertical bisector of the straight portion of the D-cut above the shaft hole 101b. It is assumed that there is a shape protrusion 101a, and a mark 101k is displayed in FIG.

In actual production, the mark 101k is not indispensable, but if it is used, it is convenient as a guide when assembling the perforating roller 1.
The mark 101k may be formed by any method such as making a hole in the triangular protrusion-equipped disc 101, marking it, or filling it with a paint.
As described above, since the number of the triangular projections 101a is an odd number, the opposite side of the center of the triangular projection-equipped disc 101 with respect to the triangular projection 101a having the mark 101k is at the center position of the two triangular projections 101a. Become.

  Accordingly, when passing the triangular protrusion-equipped disc 101 through the shaft 103, the marks 101k are alternately placed on the upper side and the lower side, and the interval between the triangular protrusion-equipped discs 101 and 101 is set to H1. For example, an equilateral triangular repetitive drilling pattern as shown in FIG. 19 can be obtained in which the length of one side is A1 and the height is H1.

  FIG. 9 is a third embodiment relating to the drilling position of the bubble cushioning material volume reducing device according to claim 2, and the difference from the fourth and fifth embodiments is that the interval between the tips of the triangular protrusions 101 a is set as the air pocket of the bubble cushioning material. It is a point made to be below the length of one side of the square inscribed in the circular shape of the bottom face.

Specifically, in FIG. 22, a circle 3003 having a radius R is a circle on the bottom surface of the air pocket of the bubble cushioning material 30 (not shown), and a square inscribed in the circle 3003 is an inscribed square 3005.
In this case, the size A2 of one side of the inscribed square 3005 is
A2 = (√2) · R = 1.414R
It is publicly known.

Here, when the four apexes of the inscribed square 3005 are set as the drilling positions 3006, the bubble cushioning material 30 having an air reservoir having a circular shape with a radius R as the bottom surface is drilled in a repeating pattern as shown in FIG. In every air reservoir, at least one location is always perforated.
This can be seen from the fact that when a circle having a radius R is drawn at an arbitrary position on the repetitive pattern in FIG. 23, the circle always includes at least one drilling position 3006.

A person skilled in the art can easily understand that the actual manufacturing method of the perforating roller 1 may be the same as that in the fourth embodiment, and therefore detailed description thereof is omitted.
According to this method, not only a general bubble cushioning material in which the air reservoirs are arranged in a staggered manner, but also air reservoirs arranged in an arbitrary pattern, and air having a size covering a circle with a radius R can be used. If it is a reservoir, the shape is not limited to a circle, and it is possible to obtain an effect that it can be applied to all of the bubble cushioning materials having an air reservoir of an arbitrary shape.

  However, the number of the triangular protrusions 101a related to the punching and compression that simultaneously reach the elastic limit in the process of the punching roller 1 as in the fourth and fifth embodiments is equal to the number of the triangular protrusions-equipped disks 101. There is no advantage that the required force is nearly half because it becomes half of the role, and the interval between the perforation positions 3006 is also narrowed. Therefore, when the perforation rollers 1 have the same width, the necessary number of the discs 101 with triangular protrusions is required. Will increase.

On the other hand, since all the triangular protrusion-equipped disks 101 may be the same, the manufacture becomes easy.
In view of these advantages and disadvantages, it can be said that the method of Example 5 is suitable for an industrial bubble buffer material volume reducing device that can easily obtain large power.

An embodiment of a bubble cushioning material volume reducing device according to claim 3 of the present invention, characterized in that three types of perforation patterns can be changed according to the type of the bubble cushioning material.
Although three types of perforation patterns are used as an embodiment, in principle, it is possible to deal with two types or four or more types of perforation patterns.

FIG. 24 shows a triangular protrusion-equipped disc 101X, where the radius of the inner circumference 101d is R0, and the tip of the triangle-like protrusion 101a is along the outer circumference 101e of radius R1.
The interval between the tips of the triangular protrusions 101a is A1.

FIG. 25 shows a triangular protrusion-equipped disc 101Y, the radius of the inner circumference 101d is R0, the tip of the triangle protrusion 101a is along the outer circumference 101e of radius R1, and the tip of the triangle protrusion 101f is of radius R2. It shall be along the outer circumference 2 101 g.
The triangular protrusions 101a and the triangular protrusions 101f are alternately arranged, the interval between the adjacent triangular protrusions 101a and 101g is A1, and the interval between the apexes of the two triangular protrusions 101g is A2.

FIG. 26 shows a triangular protrusion-equipped disc 101Z, the radius of the inner circumference 101d is R0, the tip of the triangle protrusion 101a is along the outer circumference 101e of the radius R1, and the tip of the triangle protrusion 101h is the radius R3. It shall be along the outer circumference 3 101i.
One triangular projection 101f1 is arranged for two triangular projections 101a, the interval between adjacent triangular projections 101a and 101h is A1, and the interval between the apexes of two triangular projections 101h is A3.
Note that the radius relationship is R0 <R1 <R2 <R3.

As shown in FIG. 27, the triangular protrusion-equipped discs 101X, 101Y, and 101Z are arranged at equal intervals W1 with the spacers 102 therebetween and fixed through the shaft 103 to form the perforating roller 1X.
Here, the triangular protrusion-equipped discs 101Y are arranged every other first, third, fifth, seventh,... From the left, and the interval between adjacent triangular projection-equipped disks is W1.

The triangular protrusion-equipped disc 101X is the fourth, sixth, eighth,... From the left, and the interval between adjacent triangular projection-equipped disks is W1.
At this time, the interval W2 between the fourth, sixth, and eighth triangular protrusion-equipped disks 101X and the triangular protrusion-equipped disk 101X from the left is twice W1.

The triangular protrusion-equipped disc 101Z is the second, tenth,... From the left, and the interval between adjacent triangular projection-equipped disks is W1.
At this time, the interval W3 between the triangular protrusion-equipped disk 101Z and the triangular protrusion-equipped disk 101Z is eight times W1.

The punching roller 1X and the cradle 2 are combined as shown in FIG. 28, and the distance between the rotation axis center 101c and the bubble cushioning material receiving surface 201 is D12.
If the distance D12 can be changed by moving either or both of the perforation roller 1X and the cradle 2 in the relative position moving direction shown in FIG. 28, the perforation pattern on the bubble cushioning material is changed as shown in FIG. It will be possible.
In FIG. 33, a black dot 3007 indicates a drilling position corresponding to the outer circumference 101e, a circle (circle) 3008 indicates a drilling position corresponding to the outer circumference 2101g, and a square (square) 3009 indicates a drilling position corresponding to the outer circumference 3101i. .

Specifically, in the case where the distance L2 necessary for perforation depending on the elastic limit to the bubble cushioning material in FIG. 11 is set, the position with respect to the black spot 3007 is set if D12 is L2 corresponding to the outer circumference 101e smaller than R1. Can drill.
Similarly, if D12 is L2 corresponding to the outer circumference 2 101g smaller than R2, drilling can be performed at the position corresponding to ◯ 3008, and if L2 corresponding to outer circumference 3 101i smaller than R3 is drilled, drilling can be performed at the position corresponding to □ 3009.

This indicates that three perforation patterns can be selected according to the specifications of the bubble cushioning material as in Example 6.
It is clear that the number of drilling patterns can be changed in the same way.

Originally, in order to reduce the volume of the bubble cushioning material, it is only necessary to drill at least one location per air pool regardless of the size of the air pocket of the bubble cushioning material. Even if several are needed, further drilling is useless.
If the perforation pattern can be changed according to the method of the sixth embodiment, the manual force and power for rotating the unnecessary perforation roller 1X by changing the perforation pattern according to the size of the air pocket becomes unnecessary, and the apparatus components In addition, there is an effect that it is not necessary to give unnecessary strength.

As an example, when a 3 perforation pattern as in this embodiment can be selected, an air bubble cushioning material with a diameter of 7 to 20 mm, an air bubble cushioning material with a diameter of 21 to 40 mm, and the cylindrical bubble of FIG. 48 are connected. It is possible to selectively use such as corresponding to the bubble cushioning material such as the bubble cushioning material 40.
As the air pocket increases, the material of the bubble cushioning material tends to become harder, and the force required to rotate the perforation roller increases accordingly, so it is convenient to be able to select the perforation pattern, especially for manual operation Great effect.

  Note that it can be easily estimated that the same effect can be obtained even if the receiving roller 3 is used instead of the receiving table 2 and the relative position of the receiving roller 3 is changed with respect to the punching roller 1X.

According to claim 3 of the present invention, a second embodiment of the bubble cushioning material volume reducing device characterized in that three types of perforation patterns can be changed according to the type of the bubble cushioning material. 31.
In this embodiment, three types of perforation patterns are used, but it goes without saying that it is possible to cope with more perforation patterns in principle.

The punching roller 1X is the same as that of the sixth embodiment, and the cradle 2X is configured as shown in FIG.
That is, the cradle 2X is provided with a bubble cushioning material receiving surface 201, a bubble cushioning material receiving surface 2204, and a bubble cushioning material receiving surface 3205.
The distance between each bubble cushioning material receiving surface and the rotation axis center 101c of the punching roller 1X corresponds to three punching patterns as in the sixth embodiment.

If one or both of the perforation roller 1X and the cradle 2X can be moved in the relative movement direction as shown in FIG. 30, FIG. 31, and FIG. It is clear that two perforation patterns can be obtained.
In general, it is often the case that the structure of the apparatus becomes simpler when the perforation roller and the separation plate are fixed and the cradle 2X is moved.
The operation principle and effect are the same as those in the sixth embodiment, and thus description thereof is omitted.

  Further, the same effect can be obtained even if the cradle 2X of FIG. 29 having three steps is inclined as shown in FIG.

FIG. 41 shows an embodiment relating to the separation plate of the bubble buffer material volume reducing device according to claim 4 of the present invention.
As a premise for explaining the embodiment, first, terms related to the operation of the separation plate are defined in FIG.

The radius of the inner circumference 101d is R0, and the radius of the outer circumference 101e is R1.
A point where the separation surface of the separation plate intersects with the inner circumference 101d is defined as an inner intersection point 405, and a point where the separation surface intersects with the outer circumference 101e is defined as an outer intersection point 406.

The inner intersection point 405 and the outer intersection point 406 correspond to the specifications of the apparatus such as the radius of the inner circumference 101d and the radius of the outer circumference 101e, the type of bubble buffer material to be processed, the number of stacked layers, and the structural specifications of the apparatus. Accordingly, the device designer determines the required position each time, and cannot be determined anywhere.
Therefore, the internal intersection point 405 and the external intersection point 406 shown in this document are merely examples for explanation.

  As shown in FIG. 38, the bubble cushioning material 30 is perforated, compressed, moved away from the cradle 2 while being stuck into the triangular protrusion 101a, and moved along with the rotation of the perforating roller 1, and on the outer circumferential surface 101e side of the separation plate. It hits a certain separation surface 403.

Since the position of the triangular protrusion 101a pierced by the bubble cushioning material 30 is between the inner circumference 101d and the outer circumference 101e, the inner intersection 405 and the outer intersection are sure to collide with the separation surface 403 of the separation plate. Between 406.
That is, the discussion regarding the shape of the separation surface 403 of the separation plate may be performed mainly between the inner intersection point 405 and the outer intersection point 406.

Its shape is a curve (curved surface in three dimensions), but it is necessary to make it possible to specify numerical data for an NC machine or the like in order to manufacture a separation plate, so polar coordinates as shown in FIG. Define
That is, the rotation axis center 101c of the triangular protrusion-equipped disk 101 or the punching roller 1 is set as the polar coordinate origin (0, 0), and the straight line connecting the intersection point 405 is set as the polar coordinate start line 407.

As a result, the coordinates of the separation surface 403 of the separation plate are obtained by using the function r = f (θ) using r and θ in polar coordinates as shown in FIG.
It can be expressed with.
If the polar coordinates are used, the inner intersection 405 is represented by (R0, 0) and the outer intersection 406 is represented by (R1, θ1).
However, θ1 is an angle formed by the start line 407 and a straight line connecting the origin 101c and the diplomatic point 406.

It is known that if polar coordinates can be defined, it can also be expressed by orthogonal coordinates at an arbitrary position represented by the x-axis and y-axis by coordinate transformation.
Therefore, based on the polar coordinates, the orthogonal coordinates are defined at an arbitrary position with respect to the separation surface 403 of the separation plate. Y = g (x)
It can also be expressed by a function like

Next, the force applied to the separation plate will be described with reference to FIG.
When the bubble cushioning material (not shown) stuck in the triangular projection 101a of the triangular projection-equipped disk 101 of the drilling roller 1 is separated from the triangular projection 101a during the punching compression operation, the bubble cushioning material is used. Since it is pressed against the separation plate 4, a force as indicated by a vector F in FIG. 34 acts on the separation plate 4, and when the force F is large, the separation plate 4 is damaged such as deformation and separation of the bubble cushioning material. Will be difficult to perform normally.
The force F is closely related to the shape of the separation surface 403 of the separation plate 4 as shown in FIGS. 35 and 36 below.

FIG. 35 is a microscopic view of the periphery of the force application point 3010 against the bubble cushioning material, and the triangular protrusion front side 101aa is the triangular protrusion-containing disk 101 of the two sides of the triangular protrusion 101a. This is the side on the leading side with respect to the rotation direction.
Since the separation surface 403 of the separation plate 4 is microscopically equivalent to a straight line, it is shown as a straight line.
Let β be the angle of the apex side formed by the separation surface 403 and the triangular projection front side 101aa.

F1 is a force vector acting on the separation plate 4 via the force acting point 3010 on the bubble cushioning material as the triangular protrusion-equipped disc rotates, and FC1 is a vector component perpendicular to the separation plate 4 of F1. It is.
FR1 is a force vector having the same magnitude and reverse direction as F1 acting on the force acting point 3010 on the bubble cushioning material as a reaction of F1, and F0 is a vector perpendicular to FR1 acting in the direction of the triangular protrusion front side 101aa. Note that the vector F1 and the vector FR1 are perpendicular to the bisector of the apex-side corner formed by the separation surface 403 and the triangular projection front side 101aa.

The force application point 3010 to the bubble cushioning material is pushed to the apex side of the triangular protrusion 101a by the force of the vector F0.
Its size | F0 | can be seen from FIG.
| F0 | = | FR1 | · sin (1/2 · β)
It is.
Here, || indicates the magnitude (absolute value) of the vector.

Further, as can be seen from FIG. 35, the magnitude | FC1 | of the vector FC1 that becomes the force for deforming the separation plate 4 is
| FC1 | = | F1 | ・ cos (1/2 ・ β)
It is.

36 can be analyzed in the same manner as FIG.
That is, F2 is a force vector that acts on the separation plate 4 through the action point 3010 of the force against the bubble cushioning material when the triangular protrusion-equipped disc rotates, and FC2 is perpendicular to the separation plate 4 of F2. It is a vector component.

FR2 is a force vector having the same magnitude as F2 acting on the force acting point 3010 on the bubble cushioning material as a reaction of F2, and a reverse direction, and F0 is a vector perpendicular to FR2 acting in the direction of the triangular protrusion front side 101aa. Note that the vector F2 and the vector FR2 are perpendicular to the bisector of the apex-side corner formed by the separation surface 403 and the triangular projection front side 101aa.

The force application point 3010 to the bubble cushioning material is pushed to the apex side of the triangular protrusion 101a by the force of the vector F0.
The size of | F0 | is as shown in FIG.
| F0 | = | FR2 | · sin (1/2 · γ)
It is.

Further, as can be seen from FIG. 36, the magnitude | FC2 | of the vector FC2 that becomes the force for deforming the separation plate 4 is
｜ FC2 | = | F2 | ・ cos (1/2 ・ γ)
It is.

Here, the magnitude of the force required for the separation operation by the separation plate 4 from the triangular protrusion 101a of the bubble cushioning material depends on the angle β in FIG. 35 and the angle γ in FIG.
As a prerequisite for that,
0 <β <γ ≦ 90 degrees.

If the magnitude of the force F0 that pushes the action point 3010 of the force on the bubble cushioning material in FIGS. 35 and 36 toward the apex side of the triangular protrusion 101a is equal,
| F0 | = | FR1 | · sin (1/2 · β)
= | FR2 | ・ sin (1/2 ・ γ)
| FR1 | / | FR2 | = sin (1/2 · γ) / sin (1/2 · β)
Since 0 <β <γ ≦ 90 degrees, | FR1 | / | FR2 |> 1
It is.

  In order to obtain the same force for separating the bubble cushioning material, the force applied when the angle of the apex side formed by the separation surface 403 and the triangular projection front side 101aa is larger, that is, the rotation applied to the perforating roller. It shows that the power is small.

Similarly, if F1 and F2 are the same size,
| FC1 | / | FC2 | = cos (1/2 · β) / cos (1/2 · γ)
Since 0 <β <γ ≦ 90 degrees, | FC1 | / | FC2 |> 1
It is.

  This is because when the same force is applied to separate the bubble cushioning material, the force that deforms the separation plate 4 is greater when the angle of the apex side formed by the separation surface 403 and the triangular projection front side 101aa is smaller. Shows things.

  From the above results, it is easy to separate the bubble cushioning material with a small force, and in order to reduce the force for deforming the separation plate, the angle of the apex side formed by the separation surface 403 and the triangular projection front side 101aa is as perpendicular as possible. I know that it should be close to.

  Qualitatively, the shape of the separation surface 403 from the inner intersection 405 to the outer intersection 406 is a smooth curve connecting the two points to the tangent side of the polar coordinates, and the tangent of each point with respect to the rotation axis center 101c. It can be said that if the curve has an inclination as perpendicular as possible, it is a sufficient condition for the required specifications.

  As mentioned above, in order to manufacture a separator plate industrially, it is necessary to be able to specify numerical data for an NC machine, etc. However, there are various functions that satisfy the above conditions, and the proposed function is only one of them, which is a relatively simple function, and is a sufficient condition only.

When the above qualitatively required conditions are applied to the polar coordinates of FIG. 39 defined above, the function r = f (θ) of the separation surface 403 is obtained.
Is a continuous monotonically increasing function without a singular point, and at the point (r, θ) on the separation plane, the direction of r is the direction of the apex of the triangular protrusion 101a, and the inclination of the tangent line can be as much as possible. In order to approach 90 degrees, it is considered that the inclination of the tangent increases with the increase of θ.

  That is, the function r = f (θ) of the separation surface 403 is the distance r and the slope of the tangent at an arbitrary point on the separation surface from the inner intersection point to the diplomatic point of the separation surface as in claim 4. On the other hand, if it is defined by the locus of a curve function that is monotonically increasing in a broad sense, it can be said that it can be a method for obtaining a required separation plane.

Next, the angle on the apex side of the triangular projection sandwiched between the tangent line of the function r = f (θ) of the separation surface 403 and the front side 101aa of the triangular projection at the intersection point 406 according to claim 4 is approximately 90 degrees. What should be described above will be described with reference to FIG.
FIG. 37 is a microscopic view of the vicinity of the separation point 406. Since the separation surface 403 can be regarded as a tangent to the function r = f (θ), the function r = f (θ of the separation surface 403 at the dip point 406 is shown. ) And the angle on the apex side of the triangular protrusion sandwiched between the triangular protrusion's front side 101aa is β.
If β is an acute angle of less than 90 degrees as shown in FIG. 37 (a), a force toward the back side of the separation plate 4 acts on the bubble cushioning material 30 as described above, and the bubble cushioning material has an acute angle β. As a result of being sandwiched between the portions, there is a case where it cannot be separated from the triangular protrusion 101a due to being drawn in the direction of the rotation center.

If β is 90 degrees or more as shown in FIG. 37 (b), the force toward the back side of the separation plate 4 does not work, so the tip of the triangular projection 101a is drawn from the separation plate surface 403 and the bubble cushioning material is triangular. Separated from the protrusion 101a.
In claim 4, this angle is set to "approximately 90 degrees or more", but it may be separated even if β is smaller than 90 degrees depending on the target conditions, such as when the bubble cushioning material is hard or thick. Because there is, it is “substantially”

  From the above description, if the curve according to claim 4 is used for the separation surface 403 of the separation plate, it is difficult to apply an excessive force to deform the separation plate, and the bubble cushioning material can be moved to the outer circumferential side with a small force. It can be seen that separation can be performed without entanglement at the diplomatic point.

Based on the above description, a case where an elliptic function is used for the separation surface will be described with reference to FIG. 41 as an embodiment relating to the separation plate of the bubble cushioning material volume reducing device according to claim 4.
In FIG. 41, the shape of the separation surface 403 of the separation plate is defined by y = g (x).
Actually, orthogonal coordinates are set with the rotation axis center 101c as the origin, a straight line connecting the origin and the diplomatic point 406 as the x axis 408, and a straight line passing through the origin and perpendicular to the x axis as the y axis 409.
The triangular protrusion 101a has an isosceles triangle shape and the vertex angle is α degrees (<90 degrees).

If the intersection point 406 is the intersection point (R1, 0) with the long axis of the ellipse (R1, 0), and the internal intersection point 405 is a point on the ellipse having a distance R0 from the origin and an angle θ0 with respect to the x axis, an elliptical function equation Is known by the following formula.

When the elliptic function is viewed in polar coordinates, r has no singular point between the inner intersection 405 and the outer intersection 406, and r and its differential value are monotonically increasing with respect to θ.
Further, since it is known that the tangent at the intersection point 406 is orthogonal to the x-axis, the angle at the apex side of the triangular projection sandwiched between the tangent line of the curve and the front side 101aa of the triangular projection at the intersection point 406 is 90. Since it is degree + α / 2 degrees, it is 90 degrees or more.
From this fact, it is clear that the separating plate 4 having the separating surface 403 defined by the ellipse of this embodiment satisfies the condition of the curve function in claim 4.

An example of how the separation surface 403 defined by the above elliptic function is applied to the separation plate 4 is shown in FIG.
FIG. 40 shows only the right side view of the separation plate 4, and the separation surface 403 is drawn with a thick line for easy understanding.
In FIG. 40A, the inner intersection point 405 is slightly extended toward the center of the rotation axis with a smooth curve, and the outer intersection point 406 is extended as it is in the tangential direction before being used as the connecting and fixing portion 402.

In FIG. 40B, the inner intersection 405 is extended to the surface of the spacer 102 with a smooth curve to form a spacer contact portion 411 to support the force applied to the separation plate 4.
At the diplomatic point 406, the connecting and fixing portion 402 is extended as it is in the tangential direction, and further, the tip is formed with the bubble cushioning material guide 412 so as to guide the bubble cushioning material in an arbitrary direction.

FIG. 42 shows an embodiment of a separation plate using a parabola on the separation surface in the bubble buffering material volume reducing device according to claim 4 of the present invention.
In FIG. 42, the shape of the separation surface 403 of the separation plate is defined by y = h (x).
Actually, the orthogonal point 406 is set as an origin (0, 0), a straight line passing through the origin and the rotation axis center 101c is set as a y-axis 409, and a straight line passing through the origin and perpendicular to the y-axis is set as an x-axis 408.
The triangular protrusion 101a is an isosceles triangle, and the apex angle is α degrees (<90 degrees).

If y = h (x) is a parabola passing through the inner intersection point 405, and the inner intersection point 405 is determined as a point (m, n) on the parabola at a distance R0 from the origin and an angle θ0 with respect to the y axis, the parabolic function formula is It is known that it is uniquely determined by the following equation.

When the parabola function is viewed in polar coordinates, r has no singular point between the inner intersection 405 and the outer intersection 406, and r and its differential value monotonically increase with respect to θ.
Further, since it is known that the tangent at the intersection point 406 is orthogonal to the y-axis, the angle on the vertex side of the triangular protrusion sandwiched between the tangent line of the curve and the front side 101aa of the triangular protrusion at the intersection point 406 is 90. Since it is degree + α / 2 degrees, it is 90 degrees or more.
From this fact, it is clear that the condition of the curve function in claim 4 is satisfied according to the separating plate 4 having the separating surface 403 defined by the parabola of this embodiment.

  Since how to apply the separation surface 403 defined by the above elliptic function to the separation plate 4 is the same as in the eighth embodiment, it is omitted.

FIG. 43 shows an embodiment of a separation plate using a logarithmic spiral on the separation surface in the bubble buffering material volume reducing device according to claim 4 of the present invention.
The triangular protrusion 101a is an isosceles triangle, and the apex angle is α degrees (<90 degrees).
In FIG. 43, the shape of the separation surface 403 of the separation plate is defined by r = f (θ).
Actually, the rotation axis center 101c is set as the polar coordinate origin (0, 0), and the straight line connecting the intersection point 405 and the polar coordinate start line 407 is set as the polar coordinate start line 407.

It is well known that if r = f (θ) is a logarithmic spiral passing through the inner intersection point 405 and the polar coordinates of the outer intersection point 406 are determined as (R1, θ1), the functional expression of the logarithmic spiral is uniquely determined by the following equation.

When the logarithmic spiral function is viewed in polar coordinates, r has no singular point between the inner intersection 405 and the outer intersection 406, and r and its differential value are monotonically increasing with respect to θ.
Further, the tangent at the intersection point 406 is not perpendicular to the y-axis and is slightly smaller than 90 degrees. Since α / 2 degrees is added to the angle, α may be determined so that the total value is 90 degrees or more.

From this, it is clear that the condition of the curve function in claim 4 is satisfied by the separation plate 4 having the separation surface 403 defined by the logarithmic spiral function of this embodiment.
Since how to apply the separation surface 403 defined by the above elliptic function to the separation plate 4 is the same as in the eighth embodiment, it is omitted.

The related technologies and effects not listed in the claims of the present invention are added below.
(A) It is also possible to realize a bubble cushioning material volume reducing device in a form in which a perforating roller of the present invention as described below is flattened to form a perforating disk.

  A perforated disk in which a plurality of comb-shaped triangular protrusion-equipped plates in which a plurality of triangular-shaped protrusions are arranged in a row are arranged in parallel through spacers to form a flat plate, and a concave groove into which the triangular protrusions of the drilling disk enter. With a receiving plate having a hole, a bubble cushioning material is drilled, an air pocket is compressed, and an extruding part of a separating plate provided separately is passed through the gap between the triangular protrusion-equipped plates from the back side of the drilling plate. The feature is that the reduced bubble cushioning material is separated from the perforation board, and the perforation board, the receiving board, and the separation board do not need to have a portion in contact with each other. , A foam cushioning volume reducing device having either one or both characteristics.

FIG. 47 shows an embodiment in which the bubble cushioning material volume reducing device using the perforated disk is shown by a third triangle method.
The drilling machine 8 and the separator 10 are connected by the shaft 20, and the drilling machine 8 and the separator 10 are rotated around the shaft 20 like a hinge so as to overlap the receiving board 9.
The shaft 20 is attached to the side plates 7A and 7B fixed to the bottom plate 6.
Although not shown, a bearing may be used to attach the shaft 20 to the side plates 7A and 7B.
The bottom plate 6 and the side plates 7A and 7B are shown by chain lines because their shapes are not limited as long as they have a required function.
The receiving plate 9 is fixed to the bottom plate 6 with the groove of the receiving plate 9 facing the triangular protrusion-equipped plate 81 of the punching plate 8.

FIG. 44 shows a specific example of the punching board 8.
It can be easily manufactured by fixing a plurality of triangular projection-equipped plates 81 having a plurality of triangular projections 81a at equal intervals on the lower side through connecting rods 83A and 83B via spacers 82 having a required width.
The number of the triangular protrusion-equipped plates 81 may be arbitrarily determined according to the required width of the bubble buffer material reducing device.

  Here, like the triangular protrusion 101a of the triangular protrusion-equipped disc 101 in FIG. 3, the triangular protrusion 81a is a portion that breaks through the bubble cushioning material, and the tip may be an acute angle, but may damage the human body. It is called a “triangular” projection in the sense that it may be a sector having a certain radius instead of an acute angle.

The number and thickness of the triangular protrusions 81a of the triangular protrusion-equipped plate 81 may be arbitrarily determined according to the specifications of the target bubble cushioning material volume reducing device.
Note that the shape of the drilling machine may be different from that shown in FIG. 44 in order to facilitate the volume reduction operation, and FIG. 48 is an example thereof, and the vertex line h is inclined.

The triangular protrusion-equipped plate 81 can be easily manufactured by stamping a stainless steel plate for a spring or a steel plate for a cutter with a press or laser cutting. Alternatively, a material such as ceramics or a synthetic resin having a necessary strength may be used.
The major feature is that the triangular protrusion 81a does not require sharpness of the blade or sharpness such as a needle or nail, so that it is not necessary to perform cutting, sharpening, etc. after the die cutting, and mass production is easy. The cost can be kept low.

The width t <b> 2 of the spacer 82 is set to a necessary distance between the triangular protrusion-equipped plate 81 adjacent to the triangular protrusion-equipped plate 81.
The spacer 82 is for keeping the adjacent triangular protrusion-equipped plates 81 at a required interval and does not apply a large force. Therefore, the material may be a metal or a synthetic resin that is light in weight and has good workability. .

In addition, as long as it has a function equivalent to the above drilling machine 8, it is good also as a drilling machine 8 produced with the processing technique from which a shaping | molding process or a cutting process and other equivalent products are obtained.
Although the driving means for pressing the punching plate 8 against the receiving plate 9 is not shown, it can be realized by combining a gear, a pulley, a belt, a chain and a motor with a large-scale device, and with a small device as shown in FIG. The handle 8 may be provided by pressing the handle 8 manually, and can be easily realized by those skilled in the art by many general known methods.

45 is arranged so as to face the triangular projection provided plate 81 of the punching board 8, and as shown in the right side view of FIG. A concave groove is provided in accordance with the direction of the protrusion-equipped plate 81, and a part of the tip of the triangular protrusion 81a of the triangular protrusion-equipped plate 81 is engaged with the groove.
At this time, a part of the tip of the triangular protrusion 81a enters the concave groove of the receiving plate 9, but the perforation plate 8 may move and come into contact with each other while operating the bubble cushioning material volume reducing device. The main feature is that it is not necessary to have a structure in which the intruded portions come into contact with each other.

The material of the receiving plate 9 may be synthetic resin, metal, wood, or a combination thereof depending on the use conditions and required durability.
The manufacturing method of the receiving plate 9 is similar to that of the drilling plate 8 in that a plurality of plates corresponding to the recessed portion of the groove cushion receiving surface 201 and the plate corresponding to the recessed groove 202 may be alternately stacked, It may be made as a single piece by cutting.

46 shows a specific example of the separating plate 10 in which the separating portion 10a is passed through the gap between the triangular protrusion provided plate 81 and the triangular protrusion provided plate 81 of the punching plate 8 from the rear side j, This is for separating the bubble cushioning material that has been pierced into 8 and reduced in volume.
The main feature is that the separation plate 10 is fitted to the perforation disc 8 as in Patent Documents 4 and 6 by passing it from the rear side j as described above. It is not necessary to make a structure that punches and compresses with a bubble cushioning material in between.

  If such a structure is used, it is necessary to lengthen the triangular protrusion 81a by the thickness of the separator 10 and it is necessary to ensure its strength, and the structure of the separator 10 is complicated, and the bubble cushioning material It is disadvantageous because it is complicated and costly as a volume reduction device.

The separating plate 10 does not need to be in contact with the punching plate 8 or the receiving platen.
Further, the material of the separator 10 may be a synthetic resin or a metal depending on the required durability performance.
Since the volume reducing operation and characteristics of the bubble buffer material volume reducing device are the same as those in the first embodiment, the description thereof will be omitted.

  Although not shown in the figure, as an embodiment of the bubble cushioning material reducing device using a punching plate, the shaft 20 is not used in FIG. 47, and the separation plate 10, the punching plate 8, and the receiving plate 9 are arranged so as to overlap in order from above. There is a method in which the receiving plate 9 is fixed to the bottom plate 6 and the separating plate 10 and the punching plate 8 are moved in parallel to the receiving plate 9.

This parallel movement method can be realized by using a link mechanism generally used for a so-called hole punch, connector crimping tool or the like, which is known as a known technique.
Since the punching, punching, and separation operations for the bubble cushioning material are the same as those in the third embodiment, the detailed description is omitted.
(B) In the foam cushioning material volume reducing device of the present invention, in order to process the folded foam cushioning material, a suitable driving force is required. In general, it is sufficient to decelerate with a plurality of spur gears. However, especially in the case of manual operation, the use of a set of worm gears makes the structure extremely simple and is often sufficient as power. That is, in the case of manual operation, the combination with the worm gear is particularly effective.
(C) If the gear and the motor can be easily attached to the manual small bubble buffer material volume reducing device, it can be easily electrified.
(D) Any two or all of the cradle 2, the bottom plate 6, and the side plates 7 </ b> A and 7 </ b> B may be manufactured integrally.
(E) When the apparatus may be scaled up for industrial use, the L2 dimension in FIG. 11 can be adjusted, the number of corresponding layers can be adjusted, or the L2 dimension can be automatically adjusted to It is also possible to directly compress the inner circumference 101d to increase the compression force.
(F) The description and drawings of the present invention all describe that the bubble cushioning material is moved from the right to the left. However, the direction is not limited in principle, so the direction of movement of the bubble cushioning material is up and down, left and right, diagonally, etc. Can be arbitrarily designed as necessary.
Moreover, you may provide the box which receives the processed bubble buffer material.
(G) When handling foam cushions that are folded and multi-layered, the entrance part cannot be narrowed. Therefore, as a safety measure to prevent children's hands from getting caught, there is a method of making the entrance part (inlet) long. is there.
(H) The bubble cushioning material volume reducing device of the present invention is similar in use and structure to a shredder that crushes paper, and since there is a part that can share a drive unit and a housing, it constitutes a device having both functions Things are also possible.
(I) In order to draw the bubble cushioning material with the triangular projections of the perforating roller, the radius of the circular plate with triangular projections should be greater than the thickness at the entrance of the bubble cushioning material.

  According to the foam cushioning volume reducing device of the present invention, only a large industrial foam cushioning volume reducing device that is inexpensive due to its simple structure and easy to handle because it does not use sharp blades or needles that damage the human body. In addition, a small-sized home-use bubble cushioning volume reduction device that can be mass-produced can be manufactured.

An embodiment of a bubble cushioning material volume reducing device using a cradle according to claim 1 Specific examples of punch rollers Specific examples of disks with triangular protrusions Triangular shape example Specific examples of spacers Specific examples of discs with triangular protrusions with nail spacers Application example of a disc with triangular protrusions with spacer substitute claw Example of cradle Specific example of separator Side view of specific example of separator Explanatory drawing of perforated part of bubble buffer material volume reducing device Outline of operation of bubble buffer material volume reduction device Explanatory drawing of punching operation of bubble buffer material volume reducing device State explanatory diagram after bubble cushioning material drilling Air bubble cushioning interlayer pressure explanatory drawing Specific examples of receiving rollers Embodiment of bubble buffer material volume reducing device using receiving roller according to claim 1 Inscribed equilateral triangle drilling position explanatory diagram Illustration of regular triangle drilling pattern A specific example of a manufacturing method of a regular triangle arrangement perforating roller according to claim 2 Another specific example of the manufacturing method of the equilateral triangle arrangement perforating roller according to claim 2 Illustration of inscribed square drilling position Square perforation pattern illustration Specific Example 1 of Triangular Protrusion Disc with Three Perforations Specific Example 2 of Triangular Protrusion Disc with Three Perforations Pattern Specific example 3 of a circular plate with triangular protrusions for three perforation patterns Specific examples of perforation rollers for three perforation patterns Explanatory drawing of positional relationship between drilling roller and cradle for three drilling patterns Specific example of cradle for three drilling patterns Explanatory drawing of the positional relationship between the outer circumference perforating roller and the cradle Explanatory drawing of the positional relationship between the outer circumference 2-compatible drilling roller and the cradle Explanatory drawing of the positional relationship between the perimeter roller corresponding to the outer circumference 3 and the cradle Specific examples of three drilling patterns Illustration of pressure on the separator Explanatory drawing of force required for separation of bubble cushioning material at angle β Explanatory drawing of force required for separation of bubble cushioning material at angle γ Explanatory drawing of bubble cushioning material entrainment and separation plate angle Separation position explanatory diagram Separation plate polar coordinates explanatory diagram Illustration of the separation plate configuration method Specific example of an ellipse separator Specific examples of separation plates by parabola Specific example of logarithmic spiral separator Specific examples of drilling machines Specific examples of the receiving board Example of separator Example of bubble cushioning material volume reduction device using perforated disk An example of bubble cushioning material in the form of connecting cylindrical bubbles Another example of cradle for three drilling patterns

1, 1X Perforation rollers 101, 101W, 101X, 101Y, 101Z Triangular protrusion-equipped disks 101a, 101f, 101h Triangular protrusion 101aa Triangular protrusion front side 101ab Vertex angle 101b Shaft hole 101c Rotating shaft center 101d Inner circumference 101e Outer circumference 101g Outer circumference 2
101i outer circumference 3
101j Spacer substitute claw 101k Mark 102 Spacer 102a Shaft hole 103 Shaft 2, 2X Receiving base 201 Bubble cushioning material receiving surface 202 Groove 203 Outer circumference / bubble cushioning material receiving surface intersection 204 Bubble cushioning material receiving surface 2
205 Bubble cushioning material receiving surface 3
3 receiving roller 301 roller plate 302 spacer 303 shaft 304 bubble cushioning material receiving surface 305 groove 4, 4A separating plate 401 separating tooth 402 connecting and fixing portion 403 separating surface 404 back surface 405 inner intersection point 406 outer intersection point 407 polar coordinate start line 408 x axis 409 y-axis 410 Tangent 411 Spacer contact portion 412 Bubble cushioning material guide 5 Handle 6 Bottom plate 7A, 7B Side plate 8 Perforated disc 801 Triangular projection provided plate 801a Triangular projection 802 Spacer 803A, 803B Connecting rod 804 Handle 805 Vertex line 806 Bottom line 807 Back side 9 Receptacle 901 Foam cushioning material receiving surface 902 Groove 10 Separating board 1001 Foam cushioning material extruding part 1002 Handle 20 Shaft 30 Foam cushioning material 3001 Rupture opening 3002 Rupture protrusion 3003 Circle 3004 inscribed equilateral triangle 3005 Inside Square 3006 Drilling position 3007 Drilling position corresponding to outer circumference 3008 Drilling position corresponding to outer circumference 2 3009 Drilling position corresponding to outer circumference 3 3010 Point of action of force on bubble cushioning material 40 Bubbling buffering by connecting cylindrical bubbles Material

Claims (4)

A cylinder with a plurality of triangular projections provided with a plurality of triangular projections with sharp or non-sharp tips at the outer periphery of the disc, and fixed through a shaft while maintaining a required interval with a spacer in between. Or
Or, a nail serving as a substitute for a spacer for securing a required interval is set up, or a plurality of triangular protrusions having a plurality of triangular projections integrated with a spacer or a projection serving as a spacer are passed through a shaft. Either fixed and cylindrical,
Either of these or their equivalents are integrally formed into a cylindrical shape as a molded product,
A perforating roller configured by any of the methods,
Driving means by manual or driving device for rotating the perforation roller;
A cradle or a receiving roller having a concave groove into which the vicinity of the tip of the triangular protrusion of the perforating roller enters,
A separation plate for separating the bubble cushioning material pierced by the perforation roller is included as a component,
As an operating principle for perforating and compressing bubble cushioning materials,
It is not necessary to have a portion where the perforating roller and the cradle or the receiving roller are in contact with each other. In the perforation roller of the bubble cushioning material volume reducing device of claim 1,
The interval between the tips of the triangular protrusions on the triangular protrusion-containing disk is set to be equal to or shorter than the length of one side of the equilateral triangle inscribed in the circle of the bottom of the air pocket in which the air of the bubble cushioning material is trapped.
The interval between the adjacent triangular protrusion-equipped disks is equal to or less than the height of an equilateral triangle inscribed in the circle on the bottom surface of the air pocket of the bubble cushioning material,
In the pattern in which each vertex of the triangle having the side and height of the interval defined above is a drilling position, the bubble cushioning material is repeatedly drilled, or
Or, the interval between the tips of the triangular protrusions on the triangular protrusion-containing disk in the perforation roller, and the interval between the adjacent triangular protrusion-containing disks,
Less than the length of one side of the square inscribed in the circle on the bottom of the air pocket of the bubble cushion,
In a pattern in which each vertex of a quadrangle having sides of the interval defined above is a perforation position, the bubble cushioning material is repeatedly perforated,
A bubble cushioning material volume reducing device characterized by any of the above. In the bubble buffer material volume reduction apparatus of Claim 1,
Depending on the required drilling pattern, change the height of each triangular protrusion on the circular protrusion-equipped disk of the punching roller,
Change the relative distance between the center of the rotation axis and the bubble cushioning material receiving surface of the cradle or the receiving roller, and select the drilling pattern,
Corresponding to the height of each triangular protrusion of the perforating roller, the cradle has a bubble cushioning material receiving surface with a different height,
By changing the relative position of the cradle and the perforation roller and selecting the bubble cushioning material receiving surface corresponding to the perforation roller, or selecting a perforation pattern,
A bubble cushioning material volume reducing device characterized in that a perforation pattern can be selected according to the type of the bubble cushioning material by any one of the means. In the bubble buffer material volume reduction apparatus of Claim 1,
Centered on the center of the disk with triangular protrusions,
A circle whose radius is the distance to the bottom of the triangular protrusion is the inner circumference,
A circle whose radius is the distance to the tip of the triangular protrusion is called the outer circumference,
Among the two sides sandwiching the apex of the triangular projection, the side on the side preceding the rotational direction of the triangular projection-equipped disk shall be referred to as the front side,
When the point where the separation surface of the separation plate intersects the inner circle is the inner intersection point, and the point where the separation surface intersects the outer circle is the diplomatic point,
Regarding the shape of the separation surface from the inner intersection point of the separation plate to the diplomatic point when the separation plate is viewed in the direction of the rotation axis of the circular plate with triangular protrusions,
The center of rotation of the circular plate with triangular protrusions is the origin, and the straight line connecting the intersection of the separation plate and the starting point is the starting line.
When expressing an arbitrary point on the separation surface in polar coordinates using a length of a straight line connecting the origin and an arbitrary point on the separation surface and an angle formed by the straight line and the start line,
The length and the tangent slope at any point of the separation plane from the inner intersection to the diplomatic point are defined by a curve function trajectory that is monotonically increasing with respect to the angle, and
At the diplomatic point, either or both of the characteristics that the tangent to the curve function and the angle on the apex side of the triangular projection sandwiched between the front sides of the triangular projection are approximately 90 degrees or more A bubble buffer material volume reducing device having a separation plate having a separation surface having a shape.

Images