JP2017030764A - Shrink film bag with base paper, and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shrink film bag with a base paper, obtained by bonding a shrink film with opening means capable of easily opening a cylindrical film, to a base paper, and a method for manufacturing the same.SOLUTION: A shrink film 300 with opening means deforms the shape of an opening auxiliary part 400 in the case of shifting in the width direction a surface part 30 of a shrink film bag 100 with a base paper, bonded to at least one main surface in two main surfaces of a base paper 600, and forms an acute-angle chevron-shaped space having outer corner parts 40a and 40b or inner corner parts 42a and 42b of the opening auxiliary part 400 as the apex, and formed by a front erection part or a rear erection part, and an opening auxiliary area.SELECTED DRAWING: Figure 1

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shrink film bag with a mount and a manufacturing method thereof, and in particular, a shrink film bag with a mount in which an opening auxiliary portion is formed at one end and / or the other end of the front surface portion and the back surface portion. And the manufacturing method of the shrink film bag with a mount for manufacturing the shrink film bag with a mount.

As a shrink film bag with a mount according to the prior art, the tube of the cylindrical shrink film is folded so as to crush, and the direction of the lower end opening from the upper end opening to the center in the width direction on the front side of the folded cylindrical shrink film There is a shrink film with a mount provided with a signature suitable for (Patent Document 1).
In the shrink film bag with mount according to the prior art, when the packaged object is inserted into the cylindrical shrink film, the opening at the lower end opening of the shrink film can be easily and easily packaged by providing a signature. You can insert things.

  A shrink film bag with a mount as described above is described in JP 2012-188127 A (Patent Document 1).

JP 2012-188127 A

However, in the shrink film bag with a mount according to the conventional technique as described above, when inserting the product as the encapsulated product into the cylindrical shrink film manually in the actual manufacturing stage, the film is provided with a fold. However, when the anti-static property is not applied to the shrink film, static electricity is generated in the shrink film, and the shrink film is in close contact with each other and may not be easily opened.
In this case, both hands must be used when opening the shrink film bag, and then the product is inserted with the other hand while maintaining the open state with the other hand. In addition to delaying the packaging work, there have been problems such as costs.

  The present invention solves the above-mentioned conventional problems. The object of the present invention is to easily open a cylindrical shrink film, which is a component of a shrink film bag with a mount, with only one hand and at the same time with the other hand. It is an object of the present invention to provide a shrink film bag with a mount and a method for manufacturing a shrink film bag with a mount that make it possible to insert a package.

The shrink bag with mount according to the present invention is:
A mount having two main surfaces;
There is a front surface portion and a back surface portion, and when the front surface portion is shifted in the width direction, the frictional resistance generated between the back surface portion bonded to the main surface of the mount and the mount is between the back surface portion and the front surface portion. A cylindrical shrink film with low frictional resistance,
In the shrink film bag with mount, in which a tubular shrink film is bonded to at least one of the two main surfaces of the mount,
At one end and / or the other end of the front surface portion and the back surface portion of the cylindrical shrink film, an opening auxiliary portion is provided along the insertion direction of the enveloping object, and the opening portion is formed on the enveloping object. About the shrink film with opening means provided toward the direction intersecting the insertion direction,
The opening assisting portion has an opening assisting region in a region along the width direction of the opening,
It has a front erection part connected to the front and outer corners at the end of the surface part and a back erection part connected to the back outer corner at the end of the back part,
A front erection part that protrudes inward on the inner surface side of the front surface from the front outer corner part and a rear erection part that protrudes inward on the inner surface side of the rear surface part from the rear outer corner part are abutted to each other to meet the inner angle Part is formed,
The front erection part and the back erection part are arranged along the surface part and the back part and the surface of the mount,
When the shrink film with opening means is folded, the front surface portion and the back surface portion, the front surface portion and the front erection portion, and the back surface portion and the back erection portion are substantially parallel,
When the shrink film with the opening means is thermally shrunk, the front outer corner, the rear outer corner and the inner corner are straight and are formed so as to come into contact with the enveloping object,
The surface of the mount that adheres to the shrink film with the opening means is located at the center of the width direction of one main surface of the mount or at least one of both ends and extends in the length direction of the main surface of the mount. And
When the front surface portion is shifted in the width direction with respect to the back surface portion in the shrink with the opening means, the shape of the opening auxiliary portion is deformed, and the front outer corner portion, the rear outer corner portion or the inner corner portion of the opening auxiliary portion is set as the apex. A shrink film bag with a mount, characterized in that it forms an acute angle-shaped space formed by the front erection part or the back erection part and the opening auxiliary region or the opening front side or the opening back side.

Moreover, the shrink bag with a mount according to the present invention is, for example,
An opening auxiliary portion is formed at one end and the other end of the front surface portion and the back surface portion facing each other,
The first opening auxiliary part at one end is connected to the first front erection part connected to the first front outer corner part at one end of the surface part and the first back outer corner part at the end of the back face part. And a first back erection part
A first front erected portion that protrudes inward on the inner surface side of the front surface portion from the first front outer corner portion, and a first rear surface that protrudes inward on the inner surface side of the rear surface portion from the first back outer corner portion. The construction part is abutted to form the first inner corner,
The first front erection part and the first back erection part are arranged along the front surface part, the rear surface part and the surface of the mount,
The second opening auxiliary portion at the other end is connected to the second front erection portion connected to the second front outer corner portion at the other end of the front surface portion and the second back outer corner portion at the end of the back surface portion. And a second back erection part,
A second front erection part protruding inward on the inner surface side of the front surface part from the second front outer corner part, and a second back surface protruding inward on the inner surface side of the rear surface part from the second back outer corner part The construction part is abutted to form the second inner corner,
The second front erection part and the second back erection part are arranged along the surface part and the back part and the surface of the mount,
When the shrink film with opening means is folded, the front surface portion and the back surface portion, the front surface portion and the front erection portion, and the back surface portion and the back erection portion are substantially parallel,
When the shrink film with an opening means is thermally shrunk, the outer and outer corners, the back outer corner and the inner corner are straight and are formed so as to come into contact with the object to be encapsulated. 1 may be a shrink film bag with mount.

Moreover, the shrink bag with a mount according to the present invention is, for example,
The first front erection part and the first back erection part and the second front erection part and the second back erection part have the same width, and have a length slightly inside the ends of the front surface part and the back surface part,
The shrink film bag with mount according to claim 1, characterized in that when the shrink film with opening means is folded, the shrink film faces each other with a width slightly shorter than the width of the front surface portion and the back surface portion. Also good.

Moreover, the shrink bag with a mount according to the present invention is, for example,
The front outer corner and the rear outer corner are formed in valley folds as viewed from the outside of the front and back edges,
The shrink film bag with mount according to claim 1, wherein the inner corner portion is formed in a mountain fold when viewed from outside the ends of the front surface portion and the back surface portion.

Moreover, the shrink bag with a mount according to the present invention is, for example,
When the opening portion of the shrink film with the opening means is opened in the case where the shrink film with the opening means is formed in a substantially rectangular parallelepiped shape, the surface erection portion is opposite to the direction in which the front surface portion is shifted with respect to the back surface portion. When the opening of the shrink film with the opening means is opened when the shrink film with the opening means is formed in a substantially rectangular parallelepiped shape, the slanting direction is formed from the front outer corner to the inner corner. In the same oblique direction as the direction of shifting the front surface portion with respect to the back surface portion, it is formed from the front outer corner toward the inner corner,
The shrink with a mount according to claim 1, wherein, in the folded state which is an initial state, a distance between a point pressed when shifting the surface portion and an outer corner portion on the side where the surface portion is pressed and shifted becomes narrow. It may be a film bag.

Moreover, the shrink bag with a mount according to the present invention is, for example,
The at least one linear cutting perforation is formed from one opening to the other opening in a direction parallel to the length direction of the shrink film with the opening means. It may be a shrink film bag with a mount.

Moreover, the shrink bag with a mount according to the present invention is, for example,
The surface to be bonded to the shrink film with opening means and the mount is a portion where the first back piece and the second back piece when the shrink film with opening means are folded, or a part bonded to each other, or The shrink film bag with mount according to claim 1, wherein the shrink film bag is provided between the first back outer corner and the second back outer corner.

Moreover, the shrink bag with a mount according to the present invention is, for example,
The opening auxiliary part has an opening auxiliary region on the end side in the width direction of the surface part, a front erection part continuously provided via the front outer corner part, and a back erection part provided continuously via the inner corner part. When the surface portion is shifted toward the other end side in the width direction, it moves toward the direction away from the surface of the mount,
The opening auxiliary area and the front erection part rotate around the inner corner as the apex, the front erection part and the opening auxiliary area having the outer outer corner as the apex, and the opening auxiliary area and the back side including it as the base. It opens in a triangular shape, or the opening assisting area and the backing part rotate around the inner corner as the apex, the backing part and the surface part are the hypotenuse, and the opening assisting area and the back part including it are the bases of the triangle. The shrink film bag with mount according to claim 1, wherein the shrink film bag is formed so as to open at a distance and form a space therebetween.

The manufacturing method of the shrink bag with mount according to the present invention is, for example,
A mount having two main surfaces;
There is a front surface portion and a back surface portion, and when the front surface portion is shifted in the width direction, the frictional resistance generated between the back surface portion bonded to the main surface of the mount and the mount is between the back surface portion and the front surface portion. Providing a cylindrical shrink film having a small frictional resistance, and providing an opening in a direction intersecting the insertion direction of the enveloping object;
At one end and / or the other end of the front and back surfaces of the shrink film, along the insertion direction of the enveloping object,
Forming a front erection part connected to the front outer corner at the end of the surface part and a rear erection part connected to the rear outer corner at the end of the back surface;
Inner angle where the front erection part protruded inward on the inner surface side of the front surface part from the front outer corner part and the rear erection part protruded inward on the inner surface side of the rear surface part from the rear outer corner part Forming a portion to form a shrink film with an opening means;
The front erection part and the back erection part are adhered to at least one main surface of the two main surfaces of the mount so that the shrink film with the opening means is disposed along the front and back surfaces and the surface of the mount. Steps,
When the shrink film with opening means is folded, the front surface portion and the back surface portion, the front surface portion and the front erection portion, and the back surface portion and the back erection portion are substantially parallel,
When the shrink film with the opening means is thermally shrunk, the front outer corner, the rear outer corner and the inner corner are straight and are formed so as to come into contact with the enveloping object,
The surface of the mount that adheres to the shrink film with the opening means is located at the center of the width direction of one main surface of the mount or at least one of both ends and extends in the length direction of the main surface of the mount. And
When the surface portion in the shrink film with the opening means is shifted in the width direction, the shape of the opening auxiliary portion is deformed, and the front erection portion or the back erection portion with the front outer corner or inner corner of the opening auxiliary portion as a vertex, and It is a manufacturing method of the shrink film bag with mount, characterized by forming a shrink film with an opening means that can form an acute angle mountain-shaped space formed by the opening auxiliary region.

Moreover, the manufacturing method of the shrink bag with the mount which concerns on this invention is, for example,
Forming front and rear corners and back outer corners at one end and the other end of the opposing front and back surfaces; and
A step of forming a first front erection part connected to the first front outer corner part at one end of the front surface part and a first back erection part connected to the first back outer corner part at the end of the back surface part. When,
A first front erected portion that protrudes inward on the inner surface side of the front surface portion from the first front outer corner portion, and a first rear surface that protrudes inward on the inner surface side of the rear surface portion from the first back outer corner portion. Forming a first inner corner with which the erection part is abutted,
The first front erection part and the first back erection part are arranged along the front surface part, the rear surface part and the surface of the mount,
A step of forming a second front erection part connected to the second front outer corner part at the other end of the surface part and a second back erection part connected to the second back outer corner part at the end of the back surface part. When,
A second front erection part protruding inward on the inner surface side of the front surface part from the second front outer corner part, and a second back surface protruding inward on the inner surface side of the rear surface part from the second back outer corner part Forming a second inner corner with which the erection part is abutted,
The second front erection part and the second back erection part are arranged along the surface part and the back part and the surface of the mount,
When the shrink film with opening means is folded, the front surface portion and the back surface portion, the front surface portion and the front erection portion, and the back surface portion and the back erection portion are substantially parallel,
When the shrink film with opening means is thermally shrunk, the front outer corner, the rear outer corner and the inner corner are straight and form a shrink film configured to come into contact with the object to be encapsulated. The manufacturing method of the shrink film bag with a mount of Claim 9 may be sufficient.

Moreover, the manufacturing method of the shrink bag with the mount which concerns on this invention is, for example,
Forming a front outer corner and a rear outer corner on the first front erection part and the first back erection part and the second front erection part and the second back erection part;
The first front erection part and the first back erection part and the second front erection part and the second back erection part have the same width, and have a length slightly inside from the ends of the front surface part and the back surface part,
The opening means with mount according to claim 9, wherein when the shrink film with opening means is folded, the shrink film is formed to face each other with a width slightly shorter than the width of the front surface portion and the back surface portion. The manufacturing method of a shrink film bag with a stick may be sufficient.

Moreover, the manufacturing method of the shrink bag with the mount which concerns on this invention is, for example,
The step of forming the front outer corner portion and the rear outer corner portion is formed by bending a shrink film with an opening means into a valley fold as viewed from outside the ends of the front surface portion and the back surface portion,
10. The mount according to claim 9, wherein the step of forming the inner corner portion is formed by bending a shrink film with an opening means in a mountain fold as viewed from outside the ends of the front surface portion and the back surface portion. The manufacturing method of a shrink film bag with a stick may be sufficient.

In the present invention, when the front surface portion 30 of the shrink film 300 with opening means is manually shifted in the width direction, the back surface portion 32 is more than the frictional resistance generated between the back surface portion 32 of the shrink film 300 with opening means and the mount 600. Since the frictional resistance generated between the back surface portion 30 and the front surface portion 30 is small, friction occurs between the front surface portion 30 of the shrink film 300 with opening means adhered to the main surface of the mount 600 between the back surface portion 32 and the mount 600. Can be shifted.
As a result, the shape of the opening assisting portion 400 is deformed by the elasticity of the shrink film, and the front erection portion 43 or the back erection portion 44 having the front outer corner 40 or the inner corner 42 of the opening assisting portion 400 as a vertex, and the opening assisting region. And an acute angle-shaped space 46 surrounded by 50.
The opening 34 formed with an acute angle-shaped space 46 is shaped so that an operator can easily hook his / her finger. In manual operation, the shrink film bag 100 with mount can be easily opened with only one hand, and at the same time the other hand is covered. The package can be inserted, and as a result, labor can be reduced in the manufacturing process, delay of the packaging operation can be prevented, and the manufacturing cost can be reduced.

(A) is a perspective view of the shrink film bag with a mount according to Embodiment 1, and (B) is a cross-sectional view of the shrink film bag with a mount according to Embodiment 1. FIG. It is a perspective view for demonstrating a state when sticking a cylindrical shrink bag with respect to mount. It is sectional drawing for demonstrating the shrink film bag with mount which concerns on Embodiment 1. FIG. It is a top view in the state where the surface part of the shrink film with the opening means of the shrink film bag with mount according to Embodiment 1 is finger pressed. It is an enlarged view section of the state where the surface part of the shrink film with an opening means of the shrink film bag with a mount concerning Embodiment 1 was finger pressed. FIG. 4 is an enlarged cross-sectional view for explaining a process of manually shifting the surface portion of the shrink film with opening means of the shrink film bag with mount according to Embodiment 1 in the L direction which is a direction along the width direction by hand. is there. After the surface portion of the shrink film with the opening means of the shrink film bag with mount according to the first embodiment is manually pressed, it is manually shifted in the L direction that is the direction along the width direction to form an acute angle-shaped space. It is an expanded sectional view of a state. After the surface portion of the shrink film with the opening means of the shrink film bag with mount according to the first embodiment is manually pressed, it is manually shifted in the L direction that is the direction along the width direction to form an acute angle-shaped space. It is an expanded sectional view of a state. It is a perspective view solution figure for demonstrating the state which inserts the to-be-enclosed object with respect to the acute angle mountain-shaped space of the shrink film with an opening means of the shrink film bag with mount which concerns on Embodiment 1. FIG. It is a perspective view solution figure of the state which inserted the to-be-wrapped object in the shrink film with an opening means of the shrink film bag with mount which concerns on Embodiment 1, and performed the heat shrink process. It is a perspective view which shows the method of adhere | attaching a 1st back surface piece part and a 2nd back surface piece part, and forming a cylindrical shrink film. It is sectional drawing for demonstrating the method of forming an opening assistance part in the both ends in the width direction of a surface part and a back surface part. It is a perspective view for demonstrating the method of shape | molding in a predetermined bending shape by winding a cylindrical shrink film in roll shape. It is a whole block diagram of the manufacturing apparatus of the shrink film bag with mount which concerns on Embodiment 1. FIG. It is a top view solution figure of the manufacturing apparatus of the shrink film bag with mount which concerns on Embodiment 1. FIG. It is a front illustration solution figure of the cutter cylinder of the shrink film sticking part of the manufacturing apparatus of the shrink film bag with mount which concerns on Embodiment 1, a vacuum cylinder, and a press roller. (A) is sectional drawing for demonstrating the state which formed only the 2nd opening auxiliary | assistance part which is the one side side surface of the shrink film with an opening means in the shrink film bag with a mount based on the modification of Embodiment 1. FIG. , (B), after manually pressing the surface portion of the shrink film with the opening means of the shrink film bag with mount according to the modification of the first embodiment, the surface is manually shifted in the L direction along the width direction. It is an expanded sectional view of the state where a space larger than an acute angle mountain space was formed. These are sectional drawings for demonstrating the shrink film bag with mount which concerns on Embodiment 2. FIG.

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

(Embodiment 1)
(Structure of shrink film bag with mount according to Embodiment 1)
1 to 10 are diagrams for explaining a shrink film bag 100 with a mount according to the first embodiment.

  Hereinafter, the shrink film bag with mount 100 according to the first embodiment will be described with reference to FIGS.

  The shrink film bag 100 with mount according to the first embodiment includes a mount 600 having two main surfaces and a shrink film 300 with a cylindrical opening means, and the shrink film 300 with opening means is the second of the mount 600. It is the shrink film bag 100 with a mount, which is adhered to at least one main surface of the two main surfaces.

(Mount)
In the shrink film bag with mount 100 according to the first embodiment, the mount 600 is substantially rectangular and has two main surfaces, a front surface and a back surface, and has a longitudinal direction and a width direction.
At the upper end portion in the longitudinal direction (height direction) of the mount 600, a suspension hole for displaying a product which is an envelop 900 wrapped by the shrink film bag with mount 100 is formed, and the surface of the mount 600 On the top, product advertisements are printed.
In addition, the shape of the mount 600 in the shrink film bag 100 with mount according to the first embodiment may be other shapes such as a square and a circle in addition to the substantially rectangular shape described above.
As will be described later, the mount 600 has such a shape that the front surface 30 constituting the shrink film 300 with the opening means can be displaced on the back 32 and the surface of the mount 600.

(Shrink film)
As the material for the shrink film, thermoplastic resins such as polyethylene terephthalate (PET), polystyrene (PS, OPS), polyvinyl chloride (PVC), polypropylene (PP), and polyolefin (PE / PP) are used.
The heat shrinking temperature is about 80 degrees.
In the shrink film bag 100 with mount according to the first embodiment, a polyethylene terephthalate (PET) shrink film having elasticity is used, but a shrink film of another material may be used.
The thickness of each shrink film having a front surface portion and a back surface portion is approximately 0.03 mm or more and 0.06 mm or less.
The cylindrical shrink film 200 has a stretching direction of a heat-shrinkable plastic film (polyester resin, polypropylene resin, polystyrene resin, etc., having a wall thickness of about 10 to 150 μm, in this embodiment, 40 μm) that is uniaxially stretched laterally. Molded in the circumferential direction of the tube.
The cylindrical shrink film 200 may be formed of a biaxially stretched film in a horizontal / vertical direction in addition to a film uniaxially stretched in the horizontal direction of the film (the circumferential direction of the tube to be formed).

(Shrink film with opening means)
The tubular shrink film 200 includes a front surface portion 30 and a back surface portion 32, and the back surface portion 32 extends from the first back surface piece portion 32 a extending from one end of the front surface portion 30 of the shrink film and the other end of the front surface portion 30. This is a cylindrical shrink film 200 in which the vicinity of the edge of the extended second back surface piece 32b is brought into contact with each other and bonded together.
The cylindrical shrink film 200 has the same shape from the upper end to the lower end, an upper opening 34a is formed at the upper end, and a lower opening 34b is formed at the lower end.
The shrink film 300 with an opening means is formed by forming an opening auxiliary portion 400 and openings 34 at the upper and lower ends of the tubular shrink film 200 with respect to the tubular shrink film 200. Means the following:
The cylindrical shrink film 200 is bent at one end and / or the other end of the front surface portion 30 and the back surface portion 32 of the cylindrical shrink film 200 so that the opening auxiliary portion 400 is covered. It is provided along the insertion direction of the package 900, and the opening 34 is provided in a direction crossing the insertion direction of the package 900.
As a result, the shrink film 300 with the opening means for facilitating the opening of the opening portion 34 of the overlapped front surface portion 30 and back surface portion 32 is generated.

(Front side and back side)
In the state where the shrink film 300 with the opening means is folded, the surface portion 30 is substantially rectangular or rectangular in plan view, and has a width direction and a longitudinal direction.
In the state where the shrink film 300 with the opening means is folded, the back surface portion 32 is substantially rectangular or rectangular in plan view, and has a width direction and a longitudinal direction.

(Aperture auxiliary part)
In this embodiment, the opening auxiliary portion 400 includes a first opening auxiliary portion 400a formed on the left side of the front surface portion 30 and the back surface portion 32, and a second opening formed on the right side of the front surface portion 30 and the back surface portion 32. And an auxiliary portion 400b.

(First opening auxiliary part)
The first opening assisting portion 400a includes a first front opening assisting region 50a, a first back opening assisting region 50c, a first front erection portion 43a, a first erection portion 44a, and a first inner corner portion 42a. It is formed.
The first front erection part 43 a is a part that is connected to the first front outer corner part 40 a at the end of the surface part 30, and extends in the longitudinal direction of the cylindrical shrink film 200. The first back erection portion 44 a is a portion that is connected to the first back outer corner portion 41 a at the end of the back surface portion 32, and extends in the longitudinal direction of the tubular shrink film 200.
The first front erection part 43a and the first back erection part 44a are belt-shaped extending in the longitudinal direction on the front surface part 30 and the back surface part 32, and the first front erection part 43a and the first back erection part 44a are upper openings. The width is the same across the portion 34a and the lower opening 34b. The first front erection part 43a and the first back erection part 44a have the same width.
The first inner corner portion 42a is protruded inward from the first outer surface corner portion 40a toward the inner surface side of the surface portion 30, and the inner surface of the back surface portion 32 from the first back outer corner portion 41a. It is formed by abutting the first back erection part 44a projecting inward on the side.
The first front erection part 43 a and the first back erection part 44 a are disposed along the surface part 30, the rear part 32, and the surface of the mount 600.
The first front opening assisting region 50a is formed in a region that extends inward from the first front outer corner portion 40a along the width direction of the surface portion 30.
The first back opening assisting region 50 c is formed in a region that extends inward from the first back outer corner portion 41 a along the width direction of the back surface portion 32.
The first front opening assisting region 50a has substantially the same width as the first front mounting portion 43a and extends in the longitudinal direction of the tubular shrink film 200.
The first back opening assisting region 50c has substantially the same width as the first back erection part 44a and extends in the longitudinal direction of the tubular shrink film 200.

(Second opening auxiliary part)
The second opening assisting portion 400b includes a second front opening assisting region 50b, a second back opening assisting region 50d, a second front erection portion 43b, a second erection portion 44b, and a second inner corner portion 42b. The second front erection part 43 b is a part that is connected to the second front outer corner part 40 b at the end of the surface part 30, and extends in the longitudinal direction of the cylindrical shrink film 200. The second back erection part 44 b is a part that is connected to the second back outer corner part 41 b at the end of the back surface part 32, and extends in the longitudinal direction of the tubular shrink film 200.
The 2nd front erection part 43b and the 2nd back erection part 44b are strip | belt shape extended in the longitudinal direction of the surface part 30 and the back surface part 32, Comprising: The 1st front erection part 43a and the 1st back erection part 44a are upper opening. The width is the same from the portion 34a to the lower opening 34b. The first front erection part 43a and the first back erection part 44a have the same width.
The second inner corner portion 42b protrudes inward from the second outer surface corner portion 40b toward the inner surface side of the surface portion 30, and the inner surface of the back surface portion 32 extends from the second back outer corner portion 41b. It is formed by abutting the second back erection part 44b projecting inward on the side.
The second front erection part 43 b and the second back erection part 44 b are arranged along the surface part 30, the back part 32, and the surface of the mount 600.
The second front opening assisting region 50b is formed in a region entering the inside from the second front outer corner portion 40b along the width direction of the surface portion 30.
The second back opening assisting region 50 d is formed in a region that extends inward from the second back outer corner portion 41 b along the width direction of the back surface portion 32.
The second front opening assisting region 50b has substantially the same width as the second front erection portion 43b and extends in the longitudinal direction of the tubular shrink film 200.
The second back opening assisting region 50d has substantially the same width as the second back erection portion 44b and extends in the longitudinal direction of the tubular shrink film 200.

(Other)
In addition, when the shrink film 300 with an opening means is folded, the surface part 30 and the back surface part 32, the surface part 30 and the front erection part 43, and the back surface part 32 and the back erection part 44 become substantially parallel, and shrink with an opening means. When the film 300 is thermally shrunk, the front outer corner 40, the rear outer corner 41 and the inner corner 42 are straight and are formed so as to come into contact with the object 900.
Further, the first front erection part 43a and the first back erection part 44a and the second front erection part 43b and the second back erection part 44b have the same width, slightly from the ends of the front surface part 30 and the back surface part 32. When the shrink film 300 with the opening means is folded and has a length that enters the inside, they face each other with a width slightly shorter than the width of the front surface portion 30 and the back surface portion 32.
Further, the front outer corner 40 and the rear outer corner 41 are formed in a valley fold when viewed from outside the ends of the front surface 30 and the back surface 32, and the inner corner 42 is the end of the front surface 30 and the back surface 32. As viewed from the outside, it is formed in a mountain fold.
Further, the front erection part 43 has a direction in which the front surface part 30 is shifted with respect to the back surface part 32 when the opening part 34 of the shrink film 300 with opening means is opened in a state where the shrink film 300 with opening means is folded. Is formed on the opposite side in an oblique direction from the front outer corner portion 40 toward the inner corner portion 42, and the back laying portion 44 is a shrink with opening means in a state where the shrink film 300 with opening means is folded. When the opening 34 of the film 300 is opened, the direction in which the front surface portion 30 is displaced with respect to the back surface portion 32 is the same, and is formed in an oblique direction from the front outer corner portion 40 toward the inner corner portion 42.
In the folded state, which is the initial state, the first opening that is the side that is pushed when the surface portion 30 is shifted from the second opening assisting portion 400b side toward the first opening assisting portion 400a side and the surface portion 30 is pushed and shifted. The distance from the outer corner (back outer corner 41) on the auxiliary portion 400a side becomes narrower.

(Relationship between mount and shrink film with opening means)
The base 600 and the shrink film 300 with the opening means are bonded to each other with the adhesive portion 606 of the base sheet 600 and the adhesive portion 33 of the shrink film 300 with the opening means.
In addition, the 1st back surface piece part 32a in the opening back side 45b which is an area | region which pinches | interposes the 1st back opening assistance area | region 50c and the 2nd back opening assistance area | region 50d in the back surface part 32 of the shrink film 300 with an opening means, and 2nd back surface The portions other than the sticking portion 33 where the pieces 32b overlap with each other, and the first back opening auxiliary region 50c and the second back opening auxiliary region 50d are not bonded to the mount 600.

  The surface of the shrink film 300 with opening means that adheres to the mount 600 is such that the first back piece 32a and the second back piece 32b overlap each other when the cylindrical shrink film 300 with opening means is folded. It has in the part combined with.

  The surface of the pasting portion (shrink film side) 33 bonded to the shrink film 300 with the opening means on the mount 600 is at least one of the center portion in the width direction of one main surface of the mount 600 and both end portions. It has a portion that is biased and extends in the length direction of the same main surface of the mount 600.

In the shrink film bag 100 with mount according to the first embodiment, the shrink film 300 with opening means adhered to the mount 600 is formed in a substantially rectangular shape along the width direction and the longitudinal direction of the mount 600 and has opening means. Even if the shrink film 300 is cut in any region in the longitudinal direction, the opening auxiliary portion has the same cross-sectional shape.
In addition, the 1st opening auxiliary | assistant part 400a and the 2nd opening auxiliary | assistant part 400b are formed in the mutually parallel state from the upper opening part 34a in the shrink film 300 with an opening means to the lower opening part 34b.
Moreover, the 1st front outer side corner | angular part 40a which comprises the 1st opening auxiliary | assistant part 400a, the 1st inside corner | angular part 42a, and the 1st back outside corner from the upper opening part 34a in the shrink film 300 with an opening means to the lower opening part 34b. The portions 41a are formed in parallel with each other.
Moreover, the 2nd front outside corner | angular part 40b, the 2nd inside corner | angular part 42b, and the 2nd back outside corner which comprise the 2nd opening auxiliary | assistant part 400b ranging from the upper opening part 34a in the shrink film 300 with an opening means to the lower opening part 34b. The portions 41b are formed in parallel with each other.
Furthermore, the first front outer corner 40a, the first inner corner 42a, and the first back outer corner constituting the first opening auxiliary portion 400a from the upper opening 34a to the lower opening 34b in the shrink film 300 with the opening means. The portion 41a, the second front outer corner portion 40b, the second inner corner portion 42b, and the second back outer corner portion 41b of the second opening assisting portion 400b are formed in parallel to each other.

The shrink film with opening means in a state where the upper end (near the upper opening 34 a) and the lower end (near the lower opening 34 b) of the shrink film 300 with opening means protrude from the upper end and lower end of the envelope 900. By applying heat treatment to 300, the entire film is thermally shrunk.
In addition, when the bottom part of the to-be-enclosed object 900 and the lower end part of the base_sheet | mounting_paper 600 are match | combined, heat processing is performed with respect to the shrink film 300 with an opening means, and the whole film heat-shrinks.
As a result, the bottom of the object 900 is supported by the lower end of the shrink film 300 with opening means, and the ceiling of the object 900 is supported by the upper end of the shrink film 300 with opening means. Become.

  When the shrink film 300 with opening means is bonded to the mount 600, the position of the mount 600 to be bonded is bonded to one end portion in the width direction of the mount 600 in addition to the center portion of the mount 600. May be.

(Perforation)
In a direction parallel to the length direction of the surface portion 30 of the shrink film 300 with opening means, at least one linear shape extends from one opening 34 (upper opening 34a) to the other opening 34 (lower opening 34b). A perforation 70 for cutting is formed.
As a result, the shrink film 300 with opening means can be easily cut by the perforation 70 for cutting, and the product packaged by the shrink film 300 with opening means can be easily removed from the shrink film 300 with opening means.

(Formation process of acute angle-shaped space)

First, the formation process of the acute angle-shaped space 46 in the second opening auxiliary portion 400b at one end of the front surface portion 30 and the back surface portion 32 will be described.
(initial state)
The flat sheet-like shrink film 300 with opening means adhered at the pasting portion 33 of the mount 600 is in contact with the surface of the mount 600 in a substantially parallel state.
(Operating state for shifting the surface)
A pressing point close to the first front outer corner portion 40a on the center side in the width direction of the opening front side 45a of the surface portion 30 of the shrink film 300 with opening means in the initial state or on the side in which the surface portion 30 is shifted from the center (FIG. 3). (P point shown in FIG. 3), and the mount 600 plays the role of the base in the direction along the width direction of the shrink film 300 (L direction shown in FIG. 3) toward the first front outer corner 40a. Then, the front surface portion 30 is slid on the inner surface of the back surface portion 32 to shift from the initial state.
The distance M2 connecting the point P and the second front outer corner 40b is longer than the distance M1 connecting the point P and the first front outer corner 40a.
When the surface portion 30 of the shrink film 300 with the opening means is shifted in the L direction (L direction shown in FIG. 3), the distance M2 connecting the P point and the second front outer corner portion 40b is the P point and the first front outer side. The movable region of the second opening assisting portion 400b when the corner portion 40a is longer than the distance M1 is such that the distance M2 connecting the point P and the second front outer corner portion 40b is the distance connecting the point P and the first front outer corner portion 40a. It becomes wider than the movable region of the second opening assisting portion 400b when it is shorter than M1, and the acute angle-shaped space 46 formed in the second opening assisting portion 400b becomes larger.
The opening front side 45a is a region sandwiched between the first front opening auxiliary region 50a and the second front opening auxiliary region 50b in the surface portion 30 of the shrink film 300 with opening means.
The opening back side 45b is a region sandwiched between the first back opening auxiliary region 50c and the second back opening auxiliary region 50d in the back surface portion 32 of the shrink film 300 with opening means.

(Operating state of the second opening auxiliary part)
When the surface portion 30 is shifted, in the initial state, the second table construction portion 43b and the second table opening auxiliary region 50b that are in contact with each other in a substantially parallel state are the openings of the mount 600 with the second inner corner portion 42b as a fulcrum. It moves toward the side opposite to the surface where the shrink film 300 with means is attached. At that time, the second front outer corner portion 40b draws an arc-shaped locus centering on the second inner corner portion 42b.
Next, when the surface portion 30 is shifted, the second back outer corner portion 41b and the second back erection portion 44b also move toward the side opposite to the surface on which the shrink film 300 with opening means of the mount 600 is attached, The second back opening assisting region 50d and the opening back side 45b are also lifted from the surface of the mount 600 on which the shrink film 300 with opening means is attached.
At the same time as the surface of the shrink film 300 with the opening means is lifted, the second table opening auxiliary region 50b and the second table erection part 43b are separated, and the second inner corner part 42b side of the second table erection part 43b is separated. And the second front opening auxiliary region 50b and the opening front side 45a open, with the second front outer corner portion 40b as the apex, and an acute angle mountain shape surrounded by the second front opening auxiliary region 50b and the second front installation portion 43b. The space 46 is formed.
Then, a substantially triangular space 46 is formed with the second front outer corner portion 40b as the apex, the opening back side 45b as the bottom side, and the second front erection portion 43b and the second front opening assisting region 50b as the hypotenuse.
Thus, the opening 34 (upper opening 34 a) can be opened by putting a finger into the space 46 and pulling the front surface 30 away from the back surface 32.

  Next, simultaneously with the formation process of the acute angle-shaped space 46 in the second opening auxiliary part 400b at one end of the front surface part 30 and the back surface part 32, the first opening auxiliary part 400a at the other end of the front surface part 30 and the back surface part 32. The formation process of the acute angle-shaped space 46 occurring in FIG.

(Operating state of the first opening auxiliary part)
When the surface portion 30 is shifted in the L direction (L direction shown in FIG. 3), in the initial state, the first table erection portion 43a and the first table opening auxiliary region 50a that are in contact with each other in a substantially parallel state are Then, the first inner corner portion 42a is used as a fulcrum to move toward the opposite side of the surface of the mount 600 to which the shrink film 300 with the opening means is attached. At that time, the first front outer corner portion 40a draws an arc-shaped locus centering on the first inner corner portion 42a.
Next, when the surface part 30 is shifted, the first back outer corner part 41a and the first back erection part 44a also move toward the side opposite to the surface on which the shrink film 300 with the opening means of the mount 600 is attached, The second back opening assisting region 50d and the opening back side 45b are also lifted from the surface of the mount 600 on which the shrink film 300 with opening means is attached.
At the same time as the surface of the shrink film 300 with the opening means is lifted, the first back erection part 44a and the first back opening assisting region 50c are separated from each other, and the opening back side 45b is on the first back opening assisting region 50c side. And the first back opening assisting region 50c and the first back opening portion 44a are opened, and are surrounded by the first back opening portion 44a and the first back opening assisting region 50c with the first back outer corner portion 41a as a vertex. An acute angle-shaped space 46 is formed.
Then, a substantially triangular space 46 is formed, with the first inner corner portion 42a as the apex, the opening back side 45b and the first front opening auxiliary region 50c as the bottom side, and the first backering portion 44a and the opening front side 45a as the hypotenuse. Is done.
Thus, the opening 34 (upper opening 34 a) can be opened by putting a finger into the space 46 and pulling the front surface 30 away from the back surface 32.

(Operating state of the first front outer corner 40a and the second back outer corner 41b)
When the surface portion 30 of the shrink film 300 with the opening means is shifted in the L direction (L direction shown in FIG. 3) as described above, the first front outer corner portion 40a and the second back outer corner portion 41b are: It operates as follows.
The first front outer corner portion 40a of the first opening assisting portion 400a is such that the first inner corner portion 42a, which is the apex of the acute angle-shaped space 46, faces away from the mount 600 with the first outer outer corner portion 40a as a fulcrum. It plays a guiding role that draws an arcuate trajectory that moves.
The second back outer corner portion 41b of the second opening assisting portion 400b is such that the second front outer corner portion 40b, which is the apex of the acute angle-shaped space 46, faces away from the mount 600 with the second inner corner portion 42b as a fulcrum. It plays a guiding role that draws an arcuate trajectory that moves.
The first front outer corner portion 40a plays a guiding role, and the second back outer corner portion 41b plays a guiding role, so that each of the first opening auxiliary portion 400a and the second opening auxiliary portion 400b has an acute angle-shaped space 46. Is formed.

(Effect of shrink film bag with mount according to Embodiment 1)
In the shrink film bag with mount 100 according to the first embodiment, when the front surface portion 30 of the shrink film 300 with opening means is manually shifted in the width direction, the back surface portion 32 of the shrink film 300 with opening means and the mount 600 Since the frictional resistance generated between the back surface portion 32 and the front surface portion 30 is smaller than the frictional resistance generated between the base plate 600 and the shrink film 300 with the opening means, friction is generated.
Then, the shape of the opening assisting portion 400 is deformed by the elasticity of the shrink film 300 with opening means, and the front erection portion 43 or the back erection portion 44 with the front outer corner portion 40 or the inner corner portion 42 of the opening assisting portion 400 as a vertex. A sharp angle-shaped space 46 surrounded by the opening auxiliary region 50 is formed.
The opening 34 formed with an acute angle-shaped space 46 is shaped so that an operator can easily hook his / her finger. In manual operation, the shrink film bag 100 with mount can be easily opened with only one hand, and at the same time the other hand is covered. By making it possible to insert the package 900, it is possible to reduce labor in the manufacturing process, prevent delays in the packaging work, etc., and contribute to reduction in manufacturing costs.

(Embodiment 1)
(Manufacturing method of shrink film bag with mount according to Embodiment 1)

  Next, a method for manufacturing the shrink film bag 100 with mount according to the first embodiment by bonding the shrink film 300 with opening means to the mount 600 will be mainly described with reference to FIGS.

(Preparation stage)
First, a mount 600 having two main surfaces is prepared.
On the other hand, it has a front surface portion 30 and a back surface portion 32, and when the front surface portion 30 is shifted in the width direction, the back surface is larger than the frictional resistance generated between the back surface portion 32 bonded to the main surface of the mount 600 and the mount 600. A cylindrical shrink film 200 having a small frictional resistance generated between the portion 32 and the surface portion 30 is prepared.

(Formation of cylindrical shrink film)
The tubular shrink film 200 may be a tubular shrink film, and as shown in FIGS. 11 and 12, the first back piece 32 a constituting the back face 32 connected to the front face 30. And the second back piece 32b are superposed, and the first back piece 32a has a streaky adhesive layer 608 formed along the edge of the first back piece 32a and / or the second back piece 32b. It may be a shrink film formed in a cylindrical shape by bonding the second back piece 32b.

(Formation of opening)
As a method of forming the opening 34 in the cylindrical shrink film 200 in the circumferential direction of the cylindrical shrink film 200, that is, in the direction intersecting with the insertion direction of the enveloping object 900, the following method is generally used. There are two ways.
As a method of forming a shrink film bag of a predetermined shape in advance, a cylindrical shrink film is formed in the region where the upper end and the lower end are formed corresponding to the shape of the shrink film bag, particularly the length in the longitudinal direction (length direction). There is a method in which a tubular shrink film 200 is cut in the width direction 200 to form an upper opening 34a at the upper end and a lower opening 34b at the lower end.
Further, as will be described later, immediately before bonding to the mount 600, the long cylindrical shrink film 200 is formed with an upper end and a lower end corresponding to the length in the longitudinal direction (length direction) of the shrink film bag. There is a method of cutting the shrink film in the width direction of the shrink film and forming the upper opening 34a at the upper end and the lower opening 34b at the lower end.

(Method for forming opening means)
As a method for forming the opening means including the opening auxiliary region 50 and the opening auxiliary portion 400 on the front surface portion 30 and the back surface portion 32, there is the following method.
The cylindrical shrink film 200 is bent at one end and / or the other end of the front surface portion 30 and the back surface portion 32 of the cylindrical shrink film 200 facing each other along the insertion direction of the encapsulation 900. A front erection part 43 connected to the front outer corner part 40 at the end of the part 30 and a rear erection part 44 connected to the rear outer corner part 41 at the end of the back part 32 are formed (the outer outer corner part 40). And the step of forming the back outer corner 41).
Next, a front erection part 43 projecting inward on the inner surface side of the front surface part 30 from the front outer corner part 40 and a rear surface projecting inward on the inner surface side of the rear surface part 32 from the rear outer corner part 41. The inner corner portion 42 with which the installation portion 44 is abutted is formed to produce the shrink film 300 with the opening means (step of forming the inner corner portion 42).

As a method of forming the opening assisting portion 400 at both ends in the width direction of the front surface portion 30 and the back surface portion 32, there is the following method as shown in FIG.
The front outer corner 40 and the back outer corner 41 are formed at one end and the other end of the front surface 30 and the back surface 32 facing each other (step of forming the front outer corner 40 and the back outer corner 41). ).
Next, the first front erection part 43a connected to the first front outer corner part 40a at one end of the front surface part 30 and the first back outer corner part 41a at the end of the back face part 32 are connected first. Forming the back erection part 44a (step of forming the first front erection part 43a and the first back erection part 44a)
Next, the first front erection part 43a protruded inward on the inner surface side of the front surface part 30 from the first front outer corner part 40a, and the inner side on the inner surface side of the back surface part 32 from the first back outer corner part 41a. The first inner corner portion 42a is formed so as to be in contact with the first back erection portion 44a that protrudes toward (the step of forming the first inner corner portion 42a).
Thereby, the first front erection part 43a and the first back erection part 44a are arranged along the front surface part 30, the rear surface part 32, and the surface of the mount 600.
On the other hand, the second front erection part 43b provided continuously with the second front outer corner part 40b at the other end of the surface part 30 and the second back outer corner part 41b provided at the end of the rear face part 32 are provided. 2 forming the second erection part 44b (step of forming the second front erection part 43b and the second erection part 44b)
Next, the second front erection part 43b projecting inwardly on the inner surface side of the front surface part 30 from the second front outer corner part 40b, and the back surface part 32 from the second back outer corner part 41b. The second inner corner portion 42b is formed so as to be in contact with the second back erection portion 44b projecting inward on the inner surface side (step of forming the second inner corner portion 42b).
Accordingly, the second front erection part 43 b and the second back erection part 44 b are disposed along the front surface part 30, the rear surface part 32, and the surface of the mount 600.

(Preliminary molding of auxiliary opening part)
Next, between the opening auxiliary region 50 of the surface portion 30 of the cylindrical shrink film 200 and the first surface erection portion 43 a of the surface erection portion 43 and the second of the opening auxiliary region 50 and the surface erection portion 43 of the surface portion 30. Between the 1st plate 502 for interposing between the front erection part 43b, the opening auxiliary field 50 of the back surface part 32 of the cylindrical shrink film 200, and the second erection part 44b of the back erection part 44 A second plate 504 is prepared.
The first plate 502 and the second plate 504 have the same width, and are formed so as to maintain an interval between the first plate 502 and the second plate 504 by sandwiching appropriate inclusions therebetween. .

  Next, in order to form the front erection part 43 and the back erection part 44 and the inner corner part 42 formed between the front erection part 43 and the back erection part 44, the opening part 34 of the tubular shrink film 200 is used. The first plate 502 and the second plate 504 are inserted into the cylindrical shrink film 200, and the first inner angle is formed between the first plate 502 and the second plate 504 from the outside of the cylindrical shrink film 200. The part forming jig 506 and the second inner corner part forming jig 508 are placed between the first plate 502 and the second plate 504, and the cylindrical shrink film 200 is bent.

(Molding of auxiliary opening part)
The front outer corner 40, the rear outer corner 41 and the inner corner 42 bent temporarily are laminated with a cylindrical shrink film 200 in which an opening auxiliary portion 400 is formed, or as shown in FIG. By winding in a roll shape, it is formed into a predetermined bent shape.

About the manufacturing method of the shrink film bag 100 with mount concerning this invention, as an example of the method manufactured with the manufacturing apparatus 10, the manufacturing apparatus 700 of the mount with shrink film used for the packaging for display of small goods is mentioned as an example, for example. I will explain.
First, the structure of the shrink film bag 100 with mount will be described. The shrink film bag with mount 100 includes a mount 600 in the form of a rectangular sheet in plan view made of, for example, a synthetic resin material or a paper material. When the mount 600 is transported by the manufacturing apparatus 700 for a mount with shrink film according to the present invention, one straight edge 602 parallel to the transport direction and the other straight line parallel to the one straight edge 602. A plate-like body or sheet-like body having a substantially square shape in plan view.
A flat cylindrical shrink film 300 having an opening means is attached to one side of the longitudinal direction of the mount 600.

  That is, an adhesive layer 608 is formed between the mount 600 and the shrink film 300 with the opening means by applying an adhesive made of an evaporation type adhesive such as an emulsion type adhesive and drying and solidifying it. In this case, when the moisture or solvent of the adhesive evaporates and volatilizes from the end of the joint between the mount 600 and the shrink film 300 with the opening means, or is absorbed and absorbed, and the entire medium disappears, the mount 600 and the opening are opened. A fixed adhesive film is formed between the shrink film 300 with means and adhered by the adhesive layer 608. Therefore, even if it adheres to the to-be-adhered body (mounting board 600, shrink film 300 with an opening means) which consists of non-water-absorbing materials, it can adhere | attach.

As shown in FIG. 14, the manufacturing apparatus 700 for a mount with shrink film according to this embodiment schematically includes a mount supply unit 720 that stores a large number of mounts 600 in a stacked state, and supplies them separately one by one. And a mount transporting unit 730 that transports the mount 600 supplied by the mount supplying unit 720 one by one, an adhesive applying unit 760 that applies an adhesive to the main surface of the transported mount 600, and adhesion of the mount 600 The shrink film sticking part 790 for sticking the cylindrical shrink film 200 on the main surface where the agent was applied is provided.
The mount supply unit 720, the mount transport unit 730, the adhesive application unit 760, and the shrink film sticking unit 790 are the feed direction of the mount 600 of the mount supply unit 720 and the transport direction of the mount 600 of the mount transport unit 730. The direction of rotation of the plate roll 762 and the adhesive supply roll 772 of the adhesive application unit 760 and the direction of supplying the shrink film 300 with the opening means of the shrink film attaching unit 790 to the mount 600 are aligned. , Provided on the gantry 712.
FIG. 15 is a plan view of the manufacturing apparatus for the shrink film with mount 100 according to the first embodiment.
As shown in FIG. 15, the gantry 712 is divided into a front side and a far side along the transport direction of the mount 600, and is provided with a first mounting part 714a, a second mounting part 714b, and a third mounting part 716a. And a fourth attachment portion 716b, and a fifth attachment portion 718a and a sixth attachment portion 718b.
The first attachment portion 714a and the second attachment portion 714b are parallel to each other and are provided vertically on the mount 712 so as to face each other, and the upstream side of the mount supply portion 720 and the mount transport portion 730 is attached. ing.
The third attachment portion 716a and the fourth attachment portion 716b are parallel to each other and are provided vertically on the gantry 712 so as to face each other, and the adhesive application portion 760 is attached thereto.
The fifth attachment portion 718a and the sixth attachment portion 718b are parallel to each other and are provided vertically on the gantry 712 so as to face each other, and the downstream side of the mount conveyance portion 730 is attached.
Hereinafter, each of these parts will be described in the order of the flow of the manufacturing process of the shrink film bag with mount 100 with reference to the drawings.

(Mount supply section)
First, the mount supply unit 720 will be described with reference to FIGS. 14 and 15.
As shown in FIG. 14, the mount supply unit 720 includes a feed table 721 that is arranged to be inclined downward toward the downstream side. The feed table 721 stores a plurality of sheet-like mounts 600. The linear edge 602 on one side and the linear edge 604 on the other side of the mount 600 are aligned and stacked by one restricting portion and the other restricting portion, and are sent out in an appropriate direction. ing.
One regulating unit and the other regulating unit determine the supply direction of the mount 600 by the mount supply unit 720.
On the mount discharge end side of the feed table 721, an upper feed roll 722a and a lower feed roll 722b are provided so as to face each other vertically.
A rubber feed roll claw 723 is provided on the outer periphery of the upper feed roll 722a.
A retard 724 as a friction holder is provided between the feed table 721 and the feed rolls 722a and 722b.
A sub-feed roll (not shown) may be provided on the downstream side of the upper feed roll 722a.

(Mounting unit)
The board transport unit 730 will be described with reference to FIGS. 14 to 16. FIG. 15 is a plan view of the chain conveyor 732.
The mount conveyance unit 730 includes a chain conveyor 732 having a pair of left and right chains 734a and chains 734b in plan view. The mount 600 supplied from the mount supply unit 720 is conveyed to the downstream side with the rotation of either the left or right chain 734a or the chain 734b of the chain conveyor 732.

(Shrink film sticking part)
The shrink film sticking part 790 is demonstrated using FIG. 14 thru | or FIG. The shrink film sticking unit 790 is disposed on the downstream side of the mount sheet transporting unit 730. The shrink film attaching unit 790 includes a shrink film body loading unit 792 wound with the shrink film 300 with opening means, and a cutter for cutting the shrink film 300 with opening means supplied from the shrink film body loading unit 792 at equal intervals. Cylinder 794, vacuum cylinder 796 for adhering cut-out shrink film 300 with opening means and adhering shrink film 300 with opening means to mount 600, and pressure roller 798 arranged to face the bottom of vacuum cylinder 796 Including.

  For example, the shrink film body loading unit 792 includes a shrink film 300 with opening means processed into a cylindrical shape by an apparatus different from the manufacturing apparatus 700 according to the present invention, and longitudinal edges on both the left and right sides of the shrink film 300 with opening means. And a laminate of the shrink film 300 with opening means obtained by winding it around the core tube in an annular shape.

FIG. 16 is a front view of the cutter cylinder 794, the vacuum cylinder 796, and the pressing roller 798 of the shrink film attaching portion 790 of the manufacturing apparatus 10 according to this embodiment.
The vacuum cylinder 796 is provided with a large number of suction holes on the outer peripheral surface, and the shrink film 300 with opening means is sucked to the outer peripheral surface by vacuum through the suction holes. As shown in FIG. 16, the shrink film 300 with opening means supplied from the shrink film body loading unit 792 is supplied to the cutter cylinder 794 by a nip roll 804 through a plurality of guide rolls 802.

The cutter cylinder 794 is a cylindrical body, and has a bearing (the bearing () between the vertical fifth mounting portion 718a projecting from the mount 712 and the sixth mounting portion 718b that is parallel to and perpendicular to the fifth mounting portion 718a. (Not shown) is attached to the cutter cylinder shaft 759. A cutter cylinder gear 758 is attached to the cutter cylinder shaft 759 between the cutter cylinder 794 and the fifth attachment portion 718a.
The cutter cylinder 794 includes a cutter on the outer peripheral surface and cuts to a predetermined length. The shrink film 300 with opening means cut to a predetermined length is attracted to the outer peripheral surface of the vacuum cylinder 796 and fed between the vacuum cylinder 796 and the pressure roller 798. On the other hand, since the mount 600 in which the adhesive layer 608 is formed by applying an adhesive to the pasting portion (mount side) 606 is sent between the vacuum cylinder 796 and the pressure roller 798 from the mount transport unit 730. The shrink film 300 with opening means is pressed against the mount 600 and stuck.

(Modification)
FIG. 17 is a cross-sectional view for explaining a state in which only the second opening assisting portion 400b, which is one side surface of the shrink film 300 with opening means, is formed in the shrink film bag with mount 120 according to the modification of the first embodiment. It is.

  Hereinafter, with reference to FIG. 17, the shrink film bag 120 with a mount according to a modification of the first embodiment will be described.

In the shrink film bag with mount 100 according to the first embodiment, the first opening auxiliary portion 400a and the second opening auxiliary portion 400b are formed on both side surfaces of the shrink film 300 with opening means, respectively. In the shrink film bag with mount 120 according to the first modification, only the second opening auxiliary portion 400b is formed on one side surface of the shrink film 300 with opening means, and the first opening auxiliary portion 400a is formed on the other side surface. The 1st back erection part 44a and the 2nd back erection part 44b which comprise are not formed.
The first front opening auxiliary region 50a of the front surface portion 30 and the first back opening auxiliary region 50c of the back surface portion 32 are linearly connected so as to have a V-shape.
Thus, when the surface portion 30 is shifted toward the side opposite to the second opening assisting portion 400b, the first front opening assisting region 50a bulges away from the mount 600, and the first opening assisting portion 400a is opened to form a space of a predetermined size.
In the shrink film bag 120 with mount according to the modified example of the first embodiment, the second opening auxiliary portion 400b formed on one side surface of the shrink film 300 with opening means is replaced with the second one on the other side surface. Only the one opening auxiliary portion 400a may be formed.

(Effect of shrink film bag with mount according to a modification of the first embodiment)
The shrink film bag 120 with mount according to the modification of the first embodiment is formed by forming the second opening auxiliary portion 400b only on one side surface of the shrink film 300 with opening means, and the first side surface on the other side. The opening auxiliary part 400a is not formed.
Therefore, in the shrink film bag with mount 120 according to the modification of the first embodiment, even when the surface portion 30 of the shrink film 300 with the opening means is manually shifted in the L direction, which is the width direction, the first embodiment. An acute angle-shaped space 46 is not formed at a location corresponding to the first opening assisting portion 400a in the shrink film bag 100 with mount.
As a result, the shrink film bag 120 with mount according to the modification of the first embodiment is more in the width direction than the shrink film bag 100 with mount according to the first embodiment. It is possible to shift in the L direction, and it is possible to form a space 47 that is larger than the acutely angled space 46 in volume ratio.
The space 47 larger than the acute-angled mountain-shaped space 46 in the shrink film bag 120 with mount according to the modification of the first embodiment is further increased in comparison with the shrink film bag 100 with mount according to the first embodiment. The shape is easy to hook a finger, and in the manual process, the shrink film bag 120 with mount is easily opened with only one hand, and at the same time, the inclusion 900 can be inserted with the other hand. Reduction, prevention of delay in packaging work, and the like can be achieved, which can contribute to reduction in manufacturing costs.
Further, the shrink film bag with mount 120 according to the modification of the first embodiment is formed by forming the second opening auxiliary portion 400b only on one side surface of the shrink film 300 with opening means, separately from the above effect. For an operator having a dominant hand on the side where the second opening assisting portion 400b is formed, while holding the object 900 with the dominant hand, holding the shrink film bag 120 with the mount with the opposite hand to the dominant hand, There is also an effect that the encapsulated object 900 can be easily and quickly inserted into the space 47 larger than the acute angle mountain-shaped space 46 formed in the opening 34.

(Embodiment 2)
(Structure of shrink film bag with mount according to Embodiment 2)
FIG. 18 is a cross-sectional view of the shrink film bag with mount 150 according to the second embodiment.

  Hereinafter, with reference to FIG. 18, the shrink film bag 150 with mount according to the second embodiment will be described.

The shrink film bag 150 with mount according to the second embodiment is the same as the shrink film bag 100 with mount according to the first embodiment. The first back erection part 44a is longer and the second front erection part 43b is longer than the second back erection part 44b. The second front opening auxiliary region 50b is set longer than the second back opening auxiliary region 50d, and the first front opening auxiliary region 50a is set longer than the first back opening auxiliary region 50c.
In addition, the formation process of the acute angle mountain space of the shrink film bag 150 with mount according to the second embodiment is the same as the formation process of the acute angle space of the shrink film bag 100 with mount according to the first embodiment. is there.

(Effect of shrink film bag with mount according to Embodiment 2)
In the shrink film bag 150 with mount according to the second embodiment, the height of the apex of the front and outer corner portions 40 or the inner corner portions 42 of the opening auxiliary portion 400 in the acute angle-shaped space 46 is the mount according to the first embodiment. It becomes higher than the shrink film bag 100 with.
As a result, in the shrink film bag 150 with mount according to the second embodiment, the opening 34 that forms the acute angle-shaped space 46 as compared with the shrink film bag 100 with mount according to the first embodiment is provided by an operator. With a shape that makes it easier to hook your fingers, in the manual process, you can easily open the shrink film bag with mount with only one hand, and at the same time, you can insert the object 900 with the other hand. Reduction, delay prevention, and the like can be achieved, which can contribute to cost reduction.

The present invention has been described in detail with specific “embodiments and examples”, but these “embodiments and examples” are merely for specifically explaining the present invention. The shrink film bag 100 with mount and the manufacturing method thereof according to the present invention are not limited to these “embodiments, examples”, and those who have ordinary knowledge in the field within the technical idea of the present invention. Various modifications and improvements are possible.
For example, the first front outer corner portion 40a and the second front outer corner portion 40b may have a curved shape.

As described above, the embodiment of the present invention has been disclosed in the above description, but the present invention is not limited to this.
That is, various modifications can be made to the embodiment described above with respect to the mechanism, shape, material, quantity, position, arrangement, etc., without departing from the scope of the technical idea and object of the present invention. Which are included in the present invention.

  The present invention relates to a shrink film bag with a mount 100 in which a shrink film 300 with an opening means is bonded to a mount 600, which is obtained by processing a cylindrical shrink film 200 which is a component of the shrink film bag with a mount 100. It can be applied to the manufacturing method of the shrink film bag 100 with mount and the shrink film bag 100 with mount, in which the shrink film bag 100 with mount is easily opened, and at the same time, the object 900 can be inserted with the other hand. It is.

100 Shrink film bag with mount 120 according to the first embodiment Shrink film bag with mount 150 according to the modification of the first embodiment Shrink film bag with mount 200 according to the second embodiment Cylindrical shrink film 300 Shrink with opening means Film 30 Front surface portion 32 Back surface portion 32a First back surface piece portion 32b Second back surface piece portion 33 Affixing portion (shrink film side)
34 opening 34a upper opening 34b lower opening 400 opening auxiliary 400a first opening auxiliary 400b second opening auxiliary 40 front outer corner 40a first outer outer corner 40b second outer outer corner 41 back outer corner Part 41a first back outer corner part 41b second back outer corner part 42 inner corner part 42a first inner corner part 42b second inner corner part 43 table erection part 43a first table erection part 43b second table erection part 44 back erection part 44a first 1 back erection part 44b second back erection part 45a opening front side 45b opening back side 46 acute angle-shaped space 47 space larger than acute angle-shaped space 50 opening auxiliary area 50a first front opening auxiliary area 50b second front opening auxiliary Area 50c first back opening auxiliary area 50d second back opening auxiliary area 70 cutting perforation 502 first plate 504 second plate 506 first inner corner forming jig 508 second inner corner forming jig 6 0 mount 602 one straight edge 604 other straight edge 606 sticking part (mount side)
608 Adhesive layer 700 Shrink film mount production apparatus 712 Mounting base 714a First attachment portion 714b Second attachment portion 716a Third attachment portion 716b Fourth attachment portion 718a Fifth attachment portion 718b Sixth attachment portion 720 Mount supply portion 721 Feed Table 722a Upper feed roll 722b Lower feed roll 723 Feed roll claw part 724 Retard 730 Mount carrier part 732 Chain conveyor 734a Chain 734b Chain 758 Cutter cylinder gear 759 Cutter cylinder shaft 760 Adhesive application part 762 Plate roll 772 Adhesive supply roll 790 Shrink Film sticking portion 792 Shrink film body loading portion 794 Cutter cylinder 796 Vacuum cylinder 798 Pressing roller 802 Guide roll 804 Nip roll 900 Encapsulate

Claims (12)

A mount having two main surfaces;
The back surface portion and the back surface portion have a front surface portion and a back surface portion, and the back surface portion is more than the frictional resistance generated between the back surface portion and the mount that is bonded to the main surface of the mount when the front surface portion is shifted in the width direction. A cylindrical shrink film having a small frictional resistance generated between the surface portion and
In the shrink film bag with mount, in which the cylindrical shrink film is bonded to at least one main surface of the two main surfaces of the mount,
At one end and / or the other end of the front surface portion and the back surface portion of the cylindrical shrink film facing each other, an opening auxiliary portion is provided along the insertion direction of the enveloping object, and the opening portion, About the shrink film with opening means provided toward the direction intersecting the insertion direction of the enveloping object,
The opening assisting portion has an opening assisting region in a region along the width direction of the opening,
A front erection part connected to the front outer corner of the end of the surface part and a rear erection part connected to the rear outer corner of the end of the back surface;
A front erection part that protrudes inward on the inner surface side of the front surface part from the front and outer corners, and a erection part that protrudes inward on the inner surface side of the rear surface part from the back outer corner part. The inner corner is formed
The front erection part and the back erection part are arranged along the surface part and the back part and the surface of the mount,
When the shrink film with opening means is folded, the front surface portion and the back surface portion, the front surface portion and the front erection portion, and the back surface portion and the back erection portion are substantially parallel,
When the shrink film with the opening means is thermally shrunk, the front outer corner portion, the back outer corner portion and the inner corner portion are straight and are formed so as to come into contact with the enveloping object,
The surface of the mount that adheres to the shrink film with opening means is biased to at least one of the widthwise central portion or both ends of the mount and in the length direction of the mount of the mount. In the stretched part,
When the front surface portion is shifted in the width direction with respect to the back surface portion in the shrink with the opening means, the shape of the opening auxiliary portion is deformed, and the front outer corner portion or the rear outer corner portion of the opening auxiliary portion or A mount having an acute angle mountain shape formed by the front erection part or the back erection part and the opening auxiliary region or the opening front side or the opening back side with the inner corner as a vertex. With shrink film bag. An opening auxiliary portion is formed at one end and the other end of the front surface portion and the back surface portion facing each other,
The first opening auxiliary portion at one end is connected to the first front erection portion that is connected to the first front outer corner portion at one end of the surface portion and the first back outer corner portion at the end of the back surface portion. A first erection part provided,
A first front erection part projecting inward on the inner surface side of the front surface part from the first front outer corner part, and projecting inward on the inner surface side of the rear surface part from the first back outer corner part. In addition, the first inner corner portion is formed by abutting against the first backing portion,
The first front erection part and the first back erection part are disposed along the front surface part, the back surface part, and the surface of the mount,
The second opening auxiliary portion at the other end is connected to a second front erection portion that is connected to the second front outer corner portion at the other end of the surface portion and a second back outer corner portion at the end of the back surface portion. A second back erection part provided,
A second front erection portion projecting inwardly on the inner surface side of the front surface portion from the second front outer corner portion, and an inward projection on the inner surface side of the back surface portion from the second back outer corner portion. The second back erected portion is abutted to form a second inner corner,
The second front erection part and the second back erection part are disposed along the front surface part, the rear surface part, and the surface of the mount,
When the shrink film with opening means is folded, the front surface portion and the back surface portion, the front surface portion and the front erection portion, and the back surface portion and the back erection portion are substantially parallel,
When the shrink film with opening means is thermally shrunk, the front outer corner portion, the back outer corner portion, and the inner corner portion are straight and are formed so as to come into contact with the object to be encapsulated. The shrink film bag with the mount according to claim 1. The first front erection part and the first back erection part and the second front erection part and the second back erection part have the same width, and have a length slightly inside the ends of the front surface part and the back surface part,
The shrink film bag with mount according to claim 1, wherein when the shrink film with opening means is folded, the shrink film bag faces each other with a width slightly shorter than the width of the front surface portion and the back surface portion. The front outer corner and the rear outer corner are formed in valley folds as viewed from the outside of the front and back edges,
The shrink film bag with mount according to claim 1, wherein the inner corner portion is formed in a mountain fold when viewed from outside the ends of the front surface portion and the back surface portion. When the opening portion of the shrink film with the opening means is opened when the shrink film with the opening means is formed in a substantially rectangular parallelepiped shape, the surface erection portion is opposite to the direction in which the front surface portion is shifted with respect to the back surface portion. In the oblique direction, it is formed from the front and outer corners toward the inner corner, and when the shrink film with the opening means is formed into a substantially rectangular parallelepiped shape, the opening portion opens the opening of the shrink film with the opening means. When the surface portion is formed in the same oblique direction as the direction of shifting the front surface portion with respect to the back surface portion, from the front outer corner portion toward the inner corner portion,
2. The mount according to claim 1, wherein, in the folded state which is an initial state, a space between a point pressed when the surface portion is shifted and an outer corner portion on the side where the surface portion is pressed and shifted is narrowed. With shrink film bag.   The at least one linear cutting perforation is formed from one opening to the other opening in a direction parallel to the length direction of the shrink film with the opening means. Shrink film bag with mount.   The surface to be bonded to the shrink film with opening means and the mount is a portion in which the first back piece and the second back piece when the shrink film with opening means is folded, or a part bonded to each other, or The shrink film bag with mount according to claim 1, wherein the shrink film bag is provided between the first back outer corner and the second back outer corner. The opening auxiliary part has an opening auxiliary region on the end side in the width direction of the surface part, a front erection part continuously provided via the front outer corner part, and a back erection part provided continuously via the inner corner part. When the surface portion is shifted toward the other end side in the width direction, it moves toward the direction away from the surface of the mount,
The opening auxiliary area and the front erection part rotate around the inner corner as the apex, the front erection part and the opening auxiliary area having the outer outer corner as the apex, and the opening auxiliary area and the back side including it as the base. It opens in a triangular shape, or the opening assisting area and the backing part rotate around the inner corner as the apex, the backing part and the surface part are the hypotenuse, and the opening assisting area and the back part including it are the bases of the triangle. The shrink film bag with mount according to claim 1, wherein the shrink film bag is formed so as to open and to form a space therebetween. A mount having two main surfaces;
The back surface portion and the back surface portion have a front surface portion and a back surface portion, and the back surface portion is more than the frictional resistance generated between the back surface portion and the mount that is bonded to the main surface of the mount when the front surface portion is shifted in the width direction. A cylindrical shrink film having a small frictional resistance generated between the surface portion and a step of providing an opening in a direction intersecting the insertion direction of the encapsulation;
At one end and / or the other end of the front and back surfaces of the shrink film, along the insertion direction of the encapsulation,
Forming a front erection part connected to the front outer corner at the end of the surface part and a rear erection part connected to the rear outer corner at the end of the back surface;
A front erection part that protrudes inward on the inner surface side of the front surface part from the front and outer corners, and a erection part that protrudes inward on the inner surface side of the rear surface part from the back outer corner part. Forming an abutted interior corner to create a shrink film with opening means;
The front erection part and the back erection part are arranged along the surface part, the back part and the surface of the mount so that the shrink film with opening means is at least one of the two main surfaces of the mount. Bonding to the main surface,
When the shrink film with opening means is folded, the front surface portion and the back surface portion, the front surface portion and the front erection portion, and the back surface portion and the back erection portion are substantially parallel,
When the shrink film with the opening means is thermally shrunk, the front outer corner portion, the back outer corner portion and the inner corner portion are straight and are formed so as to come into contact with the enveloping object,
The surface of the mount that adheres to the shrink film with opening means is biased to at least one of the widthwise central portion or both ends of the mount and in the length direction of the mount of the mount. In the stretched part,
When the surface portion of the shrink film with the opening means is shifted in the width direction, the shape of the opening assisting portion is deformed, and the surface erection with the outer outer corner portion or the inner corner portion of the opening assisting portion as a vertex is formed. Forming a shrink film with an opening means capable of forming an acute angle mountain-shaped space formed by the opening portion or the backing portion and the opening auxiliary region, Method. Forming front and rear corners and back outer corners at one end and the other end of the opposing front and back surfaces; and
Forming a first front erection part connected to the first front outer corner part at one end of the surface part and a first back erection part connected to the first back outer corner part at the end of the back surface part; And steps to
The first front erection part projecting inward on the inner surface side of the front surface part from the first front outer corner part, and projecting inward on the inner surface side of the back surface part from the first back outer corner part Forming a first inner corner that is abutted against the first backing portion that has been made,
The first front erection part and the first back erection part are disposed along the front surface part, the back surface part, and the surface of the mount,
A second front erection part connected to the second front outer corner of the other end of the front surface part and a second back erection part connected to the second back outer corner of the end of the back surface part are formed. And steps to
The second front erection part projecting inward on the inner surface side of the front surface part from the second front outer corner part, and projecting inward on the inner surface side of the back surface part from the second back outer corner part Forming the second inner corner where the second back erected portion is abutted, and
The second front erection part and the second back erection part are disposed along the front surface part, the rear surface part, and the surface of the mount,
When the shrink film with opening means is folded, the front surface portion and the back surface portion, the front surface portion and the front erection portion, and the back surface portion and the back erection portion are substantially parallel,
When the shrink film with opening means is thermally shrunk, the front outer corner, the rear outer corner and the inner corner are straight and form a shrink film configured to come into contact with the object to be encapsulated. The manufacturing method of the shrink film bag with mount of Claim 9 characterized by the above-mentioned. Forming a front outer corner and a rear outer corner on the first front erection part and the first back erection part and the second front erection part and the second back erection part;
The first front erection part, the first back erection part, the second front erection part, and the second back erection part have the same width, and are slightly inward from the front and back edges. With
The mount according to claim 9, wherein when the shrink film with opening means is folded, the shrink film is formed to face each other with a width slightly shorter than the width of the front surface portion and the back surface portion. Manufacturing method of shrink film bag with opening means. The step of forming the front outer corner portion and the rear outer corner portion is formed by bending a shrink film with an opening means into a valley fold as viewed from outside the ends of the front surface portion and the back surface portion,
The step of forming an inner corner is formed by bending a shrink film with an opening means in a mountain fold as viewed from the outside of the end of the front surface portion and the back surface portion. Of manufacturing shrink film bag with mount.

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