WO2005082732A1

WO2005082732A1 - Slider for sealed bag and sealed bag with the slider

Info

Publication number: WO2005082732A1
Application number: PCT/JP2004/002346
Authority: WO
Inventors: Ryouichi Ootsubo; Takehumi Kusuma
Original assignee: Aru Corp.
Priority date: 2004-02-27
Filing date: 2004-02-27
Publication date: 2005-09-09
Also published as: US20050196077A1

Abstract

A slider (1) for closing an opening part (B1) by sliding, from the outside, a fastener member (F) installed oppositely to the opening part (B1) inner surface of a sealed bag (B) for engagement, comprising two opposed pieces (2) connected to each other on the base end side and disposed oppositely to each other at a specified interval on the tip end side, wherein pressing projections (3) for pressing a fastener member (F) are provided on the opposed pieces so as to be projected from the inner surfaces of the opposed pieces (2), a tongue-shaped stopper (4) projected from a part of the opposed pieces (2) to a position between both opposed pieces (2) and (2) is installed, the tip of the stopper (4) is positioned on the base end side of the pressing projections (3), and the stopper (4) is formed of a base part (41) provided on the opposed pieces (2) and an expanded part (42) provided on the tip side of the base part (41). The width dimension of the expanded part (42) along a slide direction S exceeds the width dimension of the base part (41) and the width dimension of the expanded part (42) is equal to or less than the width dimension of the opposed pieces (2). A dimension between the end of one pressing projection (3) and the end of the other pressing projection (3) in the sliding direction S is equal to or less than the width dimension of the expanded part (42).

Description

Description Slider for sealed bag and sealed bag provided with this slider

The present invention relates to an improvement of a slider for closing a fastener by fitting a fastener member provided so as to face an inner surface of an opening of a sealing bag by sliding the member from the outside of the sealing bag. Things. Background art

Conventionally, a large number of sliders of this type have been provided, and for example, the slider shown in the device described in Japanese Utility Model Publication No. 39596777 is known. As shown in FIG. 8, this is provided with two opposing pieces 102 provided integrally and opposing from the base 101, and a sealing bag (see FIG. 9) is provided on the inner surface of the opposing piece 102. The fastener member 202 is sandwiched from the outside of the sealing bag to provide an insertion groove 103 for retaining the fastener member 202, and the base piece 101 of the opposing piece 102 and the two strips 1 are provided. A tongue-shaped stopper 104 is provided so as to protrude between 02 and 102, and is shortened so that its tip is located closer to the base 101 side of the fitting groove 103. And the opposing piece 102 is pressed by the elasticity of the slider itself.

With the above configuration, the front closing portions 102a of both opposing pieces 102, 102 of the slider are pushed open against the elastic force of the opposing pieces 102, and the two strips 102 , 102, the edge of the opening 201 of the sealing bag is sandwiched, and the side of the opening 201 of the sealing bag is inserted into the fitting groove 103 provided on the inner surface of the opposing piece 102. After attaching the slider to the edge of the opening portion 201 of the sealing bag by a simple means of just fitting the fastener member 202 provided on the inner surface on both sides of the edge, the sliding operation of the slider seals The opening 201 of the bag can be sealed smoothly, reliably and efficiently repeatedly.

However, in this conventional slider, the front closing portion 102a is pushed open against the elastic force of the opposing piece 102 without using the force of the expanding device. Due to the difficulty, it was difficult for users of the sealed bag users to attach the slider by hand when the slider came off from the sealed bag in each household. On the other hand, the sealing bag to which the slider is attached is often formed by bonding two resin sheets together, and as shown in FIG. 9, the opening 201 of the sealing bag is formed. A fastener member 202 comprising an opposing ridge portion and a concave ridge portion is provided on the inner surface of the opening portion 2 by fitting the ridge portion and the concave ridge portion to each other.

0 1 can be closed.

At both ends of the opening 201, an end seal 203 is formed by bonding the resin sheet by means such as heat sealing, and an end of the fastener member 202 is formed. The predetermined range is defined as a constant blocking portion 202 a that blocks the flow of air while the ridge and the ridge remain fitted by being sandwiched by the end seal 203. Has become.

The upper and lower portions of the end seal 203 sandwiching the fastener member 202 in the illustrated upper and lower portions are for securely forming the constant blocking portion 202 a by sandwiching the fastener member 202 as described above. Further, as shown in the figure, the end seal 203 is formed so as to protrude toward the inner side of the opening 201. Therefore, the above-mentioned constant blocking portion 202 a also becomes a position closer to the inside of the opening 201 accordingly.

On the other hand, in order to press the fastener member 202 more strongly, there is a slider provided with the pressing protrusion 105 inside the fitting groove 103 as shown by the broken line in FIG. .

Here, as shown in FIG. 9, the end seal above the fastener member 202 Since the constant blocking portion 202 is located closer to the inside of the opening 201 than the position 203, the slider provided with the pressing projection 105 is used. In this case, there is a gap between the pressing protrusion 105 and the constantly blocking part 202a, and the airtightness between the inside and the outside of the sealed bag is not maintained, and the fastener member 202 is closed. In spite of this condition, there is a case where so-called capillary phenomenon occurs, in which air passes as shown by the arrow in Fig. 9. It could be a serious defect when used as a compressed bag for use. Here, in view of the above, a first object of the present invention is to provide a slider which can be easily attached only by hand without using any special device such as an expanding device.

Another object of the present invention is to provide a slider capable of completely sealing a sealing bag and a sealing bag provided with the slider. Disclosure of the invention

In order to solve the above problem, the invention described in claim 1 of the present application is directed to at least one set of ridges F 1 provided so as to face the inner surface of the opening B 1 of the sealing bag B. A fastener member F consisting of a groove F and a concave portion F 2 is fitted by sliding along the opening B 1 from the outside of the sealing bag B, and a slider 1 for closing the opening B 1 is used. There are two opposing pieces 2 facing each other, which are joined on the proximal end side and arranged at a predetermined interval on the distal end side, and cover a part of the opening B 1 from outside In this manner, the facing member 2 is arranged in the opening B 1, and the fastener member F is sealed in a sealing bag so as to protrude from the inner surface 22 of at least one of the facing members 2. B from outside to fit the above-mentioned convex ridge F 1 and concave ridge F 2 Of at least one pressing projection 3 is provided, A tongue-shaped stopper 14 projecting from a part of the opposing piece 2 to the space 2 a between the opposing pieces 2, 2 is provided, and the tip of the stopper 4 is larger than the pressing projection 3. The stopper 4 is located on the base end side, and has a base 41 provided on the facing piece 2 and an enlarged portion 42 provided on the distal end of the base 41. The width dimension W42, which is a dimension along the sliding direction S, is greater than the width dimension W41 of the base 41, and the width dimension W42 is equal to or less than the width dimension W2 of the opposing piece 2. The dimension W 3 between one end 3 a and the other end 3 b in the sliding direction S of the pressing protrusion 3 is the width W 4 2 of the enlarged portion 42. A slider for a sealed bag characterized by the following: In the invention described in claim 2 of the present application, the position of each edge 4 2 b ′, 42 c of the enlarged portion 42 in the sliding direction S is the same as that of each edge 2 of the facing piece 2. 2. The slider for a sealed bag according to claim 1, wherein the slider is located 1 dragon to 3 mm inside each of the positions 2a and 22b. Further, the invention described in claim 3 of the present application is a case in which a plurality of sliders 1 are stacked on at least one end side 22 a, 22 b of the facing piece 2 in the sliding direction S. Alignment notch 6 is provided for positioning, and the enlarged portion 42 is provided so as to be displaced from the alignment notch 6 in a direction orthogonal to the sliding direction S. A slider for a sealed bag according to any one of claims 1 and 2 is provided. In the invention described in claim 4 of the present application, a guide projection 5 is provided so as to protrude from at least one inner surface 22 of each of the opposed pieces 2, 2. The projection 5 is provided on the distal end side of the pressing projection 3 in parallel with the sliding direction S. By providing a predetermined distance on the side, a space 2 b defined by the distal end portions of the opposing pieces 2 and 2 and the guide projections 5 is provided. A slope 51 is provided at a portion closer to the inside from both ends in the sliding direction S, and the height of the guide projection 5 is gradually increased from the both ends toward the inside. The sealing according to any one of claims 1 to 3, characterized in that a space (2c) defined by the two slopes (51, 51) of both projections (5, 5) is provided. Provide a slider for the bag. Further, the invention described in claim 5 of the present application is a sealed bag B provided by bonding two resin sheets, and an inner surface of the sealed bag B at an opening B1 is provided. A fastener member F comprising at least one pair of opposed ridges F1 and recesses F2 is provided, and the opening is formed by fitting the ridges F1 and the recesses F2. The portion B1 can be closed, and at both ends of the opening B1, the convex ridge F1 and the concave ridge F2 of the fastener member F are bonded together with the resin sheet. The end member B 2 is provided, and a predetermined range of the fastener member F, which is closest to the end seal B 2, is such that the convex portion F 1 and the concave portion F 2 remain fitted. Therefore, it has a constantly blocking portion F3 for blocking the air flow, and when closing the opening B1, the claim 1 The slider 1 is attached to the opening B 1, and the enlarged portion 42 of the stopper 14 contacts the end seal B 2 above the fastener member F of the sealing bag B. The sealing bag is characterized in that the pressing projections 3 provided on the front side and the above-mentioned constant blocking portion F 3 of the closed bag B come into contact with each other.

Further, in the invention described in claim 6, in the opening B1, the edge B1a of the resin sheet on one side and the edge B1b of the resin sheet on the other side are vertically moved. A sealed bag according to claim 5, wherein the sealed bag is shifted in the direction. The Brief Description of Drawings

FIG. 1 (A) is a front view showing the slider of this example, FIG. 1 (B) is a plan view thereof, and FIG. 1 (C) is a right side view thereof.

FIG. 2 (A) is a cross-sectional view taken along line AA of FIG. 1 (A), and FIG. 2 (B) is a cross-sectional view taken along line BB of FIG. 1 (A).

FIG. 3 is a plan view showing a state where the slider of the present example is attached to a sealing bag.

FIG. 4 is a cross-sectional view of a C-C main part of FIG.

FIG. 5 is an explanatory diagram showing a state in which the slider of the present example is attached to a sealed bag and the opening of the sealed bag is closed.

FIG. 6 is an explanatory diagram showing a method of attaching the slider of the present example to the opening of the sealing bag.

FIG. 7 is an explanatory view showing a state in which the slider is arranged on the holder of the spreader. 8 (A) is a plan view showing a conventional slider, FIG. 8 (B) is a front view thereof, and FIG. 8 (C) is a sectional view taken along line D-D of FIG. 8 (A).

FIG. 9 is an explanatory view showing a state in which a conventional slider is attached to a sealed bag and the opening of the sealed bag is closed. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings. 1 and 2 are views showing a slider of the present example, and FIGS. 3 and 4 are views showing a state where the slider of the present example is attached to a sealed bag. The slider 1 of the present example is molded from a hard plastic such as polypropylene as a raw material, and has a joint 21 joined to the base end side. A substantially rectangular opposing piece 2 provided integrally and opposed to each other, and a tongue piece provided so as to project from a joint 21 of the opposing piece 2 to a space 2a between the opposing pieces 2 and 2 The stopper is composed of one and four. When the slider 1 is attached to the sealing bag B as shown in FIG. 3, the slider 1 is slid in the sliding direction S, which is a direction along the joining portion 21, so that the opening B 1 of the sealing bag B Can be closed. A guide projection 5 is provided so as to protrude from the inner surface 22 of the opposing piece 2. The guide projections 5 are formed along the sliding direction S of the slider 1. When the slider 1 is attached to the sealing bag B, the slider 1 slides along the fastener member F together with the stopper 4. It will be a guide for you.

In this example, the guide projections 5 are provided on each of the opposed pieces 2 facing each other, and are strongly urged toward the opposite side by the rigidity and elasticity of the slider 11 itself made of hard plastic. As shown in FIGS. 3 and 4, when the slider 1 is attached to the opening B1 of the sealing bag B, the slider 1 is easily dropped from the opening B1 by being caught by the fastener member F. Not to be.

In this example, one set of guide projections 5 corresponds to one fastener member F composed of one set of convex ridges F1 and concave ridges F2. Two sets of guide projections 5, 5 may be arranged so as to sandwich the upper and lower portions of the fastener member F.

As described above, it is preferable to provide the guide projection 5 on each of the opposing pieces 2 and 2 because the slider 1 does not easily fall off from the opening B 1 of the sealing bag B. The guide projection 5 may be provided only on the facing piece 2. As shown in FIGS. 1A and 2A, the guide projections 5 are formed at a predetermined distance from the distal end of the opposing piece 2 to the proximal end thereof, whereby Piece A tip space .2 b defined by the tip of the tip 22 and the guide projection 55 is formed. A slope 51 is formed at a portion closer to the inside from both ends of the guide projection 5 in the sliding direction S. As shown in FIG. 1 (C), the height of the guide projection 5 from the inner surface 22 of the facing piece 2 is gradually increased from the above both ends toward the inner side, as shown in FIG. As a result, a side space 2c defined by the opposed slopes 5 1 5 1 is formed.

By forming the tip space 2b and the side space 2c, in the case of using a spreading device, the expanding claw provided in the spreading device is provided in the tip space 2b between the opposing pieces 22. It can be easily inserted and pushed open.

Even when the slider 1 is manually attached to the sealing bag B without using the expanding device, as shown in FIG. 6, the end 4 2 a of the enlarged portion 4 2 of the stopper 4 described later is sealed. While being inserted into the opening B1 of the bag B, a part of the edge of the opening B1 is arranged in the above-mentioned tip space 2b and side space 2c, and then the slider 1 is moved. By rotating in the direction of the arrow shown in the figure and completely fitting the opening B 1, the opening B 1 can be inserted into the opening B 1 without pushing between the opposing pieces 22 as in the case of using a spreader. The slider 1 can be easily attached.

Here, at the opening B1 of the sealing bag B, as shown in FIG. 6 and the like, the edge B1a of the resin sheet on one side (front side) and the edge of the resin sheet on the other side (back side). It is preferable to form the side B 1 b so as to be shifted in the vertical direction because the work of inserting the end portion 42 a of the enlarged portion 42 can be more easily performed. It is appropriate that the dimensional difference h of each of the above-mentioned edges B la B lb is 25 mm. Further, each end side B 1 a B ib is not limited to the end side of the resin sheet constituting the sealing bag B itself as described above, but may be the convex ridge F 1 and the concave ridge of the fastener member F. The end of the sheet-like portion (not shown) serving as the pedestal of F2 may be used. In this example, the stopper 4 is, as shown in FIG. 1 (A) and FIG. A base 41 provided so as to protrude from a joint 21 of the opposing pieces 2 and 2 into a space 2a existing between the opposing pieces 2 and 2, and an enlargement formed on the distal end side of the base 41 And 4 and 2.

As shown in FIG. 2A, the enlarged portion 42 has a width W 42, which is a dimension along the sliding direction S, larger than the width W 41 of the base 41, and 42 a is formed so as to protrude from both sides from base 41. In the present embodiment, the base 41 is provided at the joint 21, but the present invention is not limited to this, and it is sufficient if the base 41 is formed on at least a part of the facing piece 2.

The width W42 of the enlarged portion 42 is set to be equal to or less than the width W2 of the opposing piece 2. Specifically, from the respective edges 2 2 a and 22 b in the sliding direction S of the opposing piece 2, the respective edges 4 2 b and 42 c in the sliding direction S of the enlarged portion 42 are lmn! Located ~ 3 mm inside.

In addition, the distal end 4 2 d of the stopper 4 is provided to be shorter than the pressing protrusion 3, which will be described later, so as to be located closer to the joint portion 21, as shown in FIG. As shown, when the slider 1 is attached to the sealed bag B, the stopper 1 is positioned above the fastener member F of the sealed bag B in the figure. By arranging the stopper 4 in the opening B1 in this manner, the stopper 4 is formed by bonding both side edges of the sealing bag B when the slider 1 is slid along the opening B1. When the stopper 4 hits the end seal B2, the stopper 4 does not proceed any further, and it is possible to know that the sealing work of the opening B1 has been completed, and the slider 1- has dropped off from the sealing bag B to the side. Can be prevented.

Here, as will be described later, alignment notches 6 for orderly stacking the plurality of sliders 1 are formed on both sides 22a and 22b of the opposing piece 2 as shown in FIG. 1 (B). Has been established. In the present example, each of the opposing pieces 2 has a notch formed in a wedge shape at two locations on each end 22 a and 22 b. The shape, position, and number of the alignment notches 6 are not limited to those of the present embodiment, and can be implemented with various changes. Then, as shown in FIG. 2 (A), the above-mentioned enlarged portion 42 is positioned at a position surrounded by the alignment notch 6, that is, in a direction orthogonal to the alignment notch 6 and the sliding direction S. It is formed shifted. This is to avoid interference due to the alignment of the alignment ridge HI of the holder 1H used in the spreader as shown in FIG. 7, for example, at the position of the alignment notch 6. In this example, as shown in FIGS. 1 (A) and 2 (A), the pressing protrusion 3 protrudes from the inner surface 22 of the facing piece 2 at a position closer to the base end than the guide protrusion 5. In this example, as shown in FIG. 2 (B), the surface along the sliding direction S is a curved surface. However, the shape of the pressing protrusion 3 is not limited to the shape of the present example, and the surface may be flat and may be variously changed. When the slider 1 is attached to the sealing bag B as shown in FIG. 3, the pressing projections 3 are arranged so as to sandwich the fastener member F from the outside of the sealing bag B as shown in FIG. Then, the fastener member F is pressed from the outside of the sealing bag B to fit the convex ridge F1 and the concave ridge F2 of the fastener member.

The dimension W 3 between the one end 3 a and the other end 3 b in the sliding direction S of the pressing projection 3 shown in FIG. The width dimension of W2 is 2 or less. Thus, a step having a dimension D per one side is provided between the pressing protrusion 3 and the stopper 4. Here, as shown in FIGS. 3 and 5, at both ends of the opening B1 of the sealing bag B of this example, a resin sheet constituting the sealing bag B is formed by means such as heat sealing as in the conventional case. By bonding, an end seal B2 is formed. Generally, the upper and lower parts of the drawing sandwiching the fastener member F are separate seals from the end seal B2, and a fastener member seal B3 protruding toward the inside of the opening B1 is formed. Have been. The predetermined range of the end portion of the fastener member F is interposed between the fastener member seal B3, so that the convex ridge portion and the concave ridge portion remain fitted, thereby blocking the air flow. F3 is a normally shut off part. Therefore, the above-mentioned constantly shut off portion F 3 also exists at a position protruding toward the inside of the opening B 1 in accordance with the formation of the fastener member seal B 3, and the end seal B 2 and the constantly shut off portion F 3 The difference between the positions is the dimension D.

Note that, in the compression bag B according to the present invention, the formation of the fastener member seal B3 is not essential, and conversely, the upper and lower portions sandwiching the fastener member F are formed with the upper and lower portions located closer to the outside of the opening B1. By doing so, it is also possible to form the constantly blocking portion F3 so as not to protrude from the end seal B2, and it can be changed to various other forms.As described above, in the slider 1 of this example, The dimension W3 of the pressing projection 3 is set to be equal to or less than the width dimension W42 of the stopper 4, and is the same as the difference in position between the end seal B2 of the compression bag B and the constantly shut off portion F3. A step D is provided (see Fig. 2 (A)). Thereby, when closing the opening B1 by attaching the slider 1 to the sealing bag B and sliding it, as shown in FIG. 5, one end side 4 2c of the enlarged portion 42 of the stopper 4 is formed as shown in FIG. Is in contact with the end seal B2 of the sealing bag B, and at the same time, the end 3b on one side of the pressing projection 3 and the normally shut off portion F3 of the sealing bag B are brought into contact without any gap, thereby forming a gap. Can be eliminated. Therefore, a gap is generated between the pressing protrusion 3 and the constantly blocking portion F3 of the sealing bag B as in the conventional case, and air does not pass between the inside and the outside of the sealing bag B, and air flows therethrough. Even if the sealed bag B is used as a compression bag, it can be made highly reliable. Next, a method of using the slider 1 of the present example configured as described above will be described. First, when using the expanding device, the expanding claw of the expanding device is inserted into the distal end space 2b of the opposing pieces 2 and 2 of the slider 1 in the closed state. This expanding nail In general, the two pieces are one set, and they are linked so as to be separated in the vertical direction, so that the space 2a between the opposing pieces 2, 2 of the slider 11 can be expanded.

With the space 2a between the opposing pieces 2 and 2 of the slider 1 expanded as described above, insert the stopper 4 of the slider 1 into the opening B1 of the sealing bag B and insert the opposing piece 2 The guide projections 5 and 5 are positioned along the fastener member F. Then, when the expanding claws of the expanding device are brought close to each other to release the pushing force applied to the opposing pieces 2, 2, the opposing pieces 2, 2 are closed by their own elasticity. As a result, as shown in FIG. 4, the slider 1 is attached to the periphery of the opening B1 so that the pressing protrusions 3, 3 press the fastener member F of the sealing bag B.

As described above, since the guide projections 5 and 5 are arranged along the fastener member F, the slider 1 may be securely attached to the periphery of the opening B 1 of the sealing bag B and may be detached. The slider 1 can be attached slidably at the opening B 1 by using the expanding device. The method of attaching the slider 1 is mainly used when manufacturing the sealed bag B at the factory, and the efficiency is improved. It is possible to manufacture the sealed bag B to which the slider 1 is attached.

Note that the slider 1 according to the present invention is characterized in that it can be easily attached by hand without using an expanding device as described above. Specifically, as shown in FIG. 6, at least a part of the end 42 a of the stopper 14 of the slider 1 is inserted into the inside of the opening B 1 of the sealing bag B, and The state shown in FIGS. 3 and 4 can be easily obtained by rotating the slider 1 in the direction shown by the arrow in the state where the edge is sandwiched between the guide projections 5 and 5. In this way, the slider 1 can be easily attached to the opening B1 of the sealing bag B by hand, so that the slider 1 comes off the sealing bag B in each household of the user of the sealing bag B. In the event of a breach, it is easy for the user to attach it by hand.

2 Next, as shown in FIG. 3, a method of using the sealed bag B with the slider 1 attached thereto as a compression bag will be described.

When the slider 1 arranged at one corner on one side of the sealing bag B is slid to one corner on the other side of the sealing bag B, the convex portion F 1 and the concave portion of the fastener member F provided in the opening B 1 are provided. F2 is pressed by the pressing projections 3, 3 provided on the inner surfaces 22, 22, of the opposing pieces 2, 2 of the slider 1, respectively, so that the fitting is made securely, and the opening B1 is securely formed. Can be sealed.

At this time, since the stopper 4 provided on the slider 1 is inserted to the upper side in the figure of the fastener member F between the edges of the opening B1, it does not interfere with the sliding operation of the slider 1. When the sliding operation of the slider 1 is completed, since the end seals B2 are formed on both side edges of the sealing bag B, the stopper 4 hits as shown in FIG. Since it does not proceed, this allows the user to know that the sealing operation of the opening B1 has been completed, and also prevents the slider 11 from dropping off the sealing bag B to the side.

Next, the air inside the sealing bag B is checked by pressing the sealing bag B from the outside and exhausting it from the check valve V, or by inserting the nozzle of the vacuum cleaner into the check valve V and sucking it. When the volume of the items W such as clothes and blankets discharged from the valve V and stored in the sealed bag B is reduced, there is no danger of outside air flowing in from the opening B1 even after the date and time, and compact The reduced state can be maintained for a long time.

In particular, in the present invention, as described above, the dimension W 3 of the pressing protrusion 3 of the slider 1 is set to be equal to or less than the width dimension W 42 of the enlarged portion 42 of the stopper 14, and a step of the dimension D is provided per one side. As a result (see FIG. 2 (A)), when the opening B1 of the sealing bag B is closed, as shown in FIG. 2c is in contact with the end seal B2 of the sealing bag B, and at the same time, there is a difference in dimension D from the end 3b on one side of the pressing protrusion 3 and the end seal B2 of the sealing bag B. Since the normally shut off portion F3 is in contact with no gap, the pressing projection 3 A gap is created between the airtight bag B and the normally closed portion F3, and air flows without maintaining the airtightness between the inside and the outside of the sealed bag B, a so-called capillary phenomenon. It is highly reliable.

When taking out the stored items W such as clothing and blankets stored in the sealed bag B as described above, directly engage the convex portion F1 and the concave portion F2 of the fastener member F by hand. If you want to store the items W again, slide the slider 1 to the opposite side. Although the sealed bag B of this example has been described as being used as a compression bag, it can be used as a filling bag for filling a fluid such as liquid or gas inside. Further, the fastener member F in the sealed bag B of the present example was composed of one set of convex ridges F1 and concave ridges F2, but as shown in FIG. It may have a ridge F1 and a concave ridge F2, and may be variously modified.

As described above, the present invention is not limited to the above-described embodiment, and can be implemented with various modifications. The present invention has the following excellent effects.

In each of the first to third aspects of the present invention, the end of the enlarged portion 42 of the stopper 4 in the sliding direction S is placed inside the opening B 1 of the sealing bag B. It is easy to insert, so that the slider 1 can be easily attached only by hand without using any special equipment for attaching the slider 1 to the sealing bag B. Further, the pressing projections 3 can reliably close the fastener member F by pressing it to the end, so that when the slider 1 is attached to the sealing bag B, the sealing bag B can be completely sealed. In the invention described in claim 4, in addition to the above effects,

Four A space 2b, 2c is formed at the tip of the slider 1 by the position on the opposing piece 2 where the protrusion 5 is formed and the presence of the slope 51 formed on the guide protrusion 5. Since the edges of the opening B1 are sandwiched between the guide projections 5 and 5 through the spaces 2b and 2c, the slider 1 can be more easily attached by hand. Further, in the invention according to claim 5, a sealed bag B to which the slider 11 according to the invention described in claim 1 is attached, wherein an enlarged portion 42 of the stopper 4 is a sealed bag. In the state of contact with the end seal B 2 above the fastener member F of B, the pressing protrusion 3 of the slider 1 and the always blocking part F 3 of the sealing bag B can contact without gap, so that it is completely A sealable sealing bag B can be provided. In addition, in the invention described in claim 6, in addition to the effect of the invention described in claim 5, when attaching the slider 1 to the sealing bag B by hand, the enlarged portion 4 2 of the stopper 4 2 The end 4 2a is easily inserted into the opening B 1 of the sealing bag B, and the slider 1 is easily attached.

Five

Claims

The scope of the claims

1. A fastener member (at least one set of ridges (F1) and recesses (F2)) provided so as to face the inner surface of the opening (B1) of the sealing bag (B). F) is fitted by sliding along the opening (B1) from the outside of the sealing bag (B) to close the opening (B1). It has two opposing pieces (2) which are joined on the end side and are arranged at a predetermined interval on the front end side.

The facing piece (2) is arranged in the opening (B1) so as to cover a part of the opening (B1) from the outside.

The fastener member (F) is pressed from the outside of the sealing bag (B) so as to protrude from the inner surface (22) of at least one of the opposing pieces (2), and the ridge portion (F1) is pressed. And at least one pressing projection (3) for fitting the groove with the concave ridge (F2).

A tongue-shaped stopper (4) is provided which projects from a part of the opposing piece (2) to the space (2a) between the opposing pieces (2, 2). The tip of this stopper (4) is It is located closer to the proximal end than the pressing projection (3).

The stopper (4) has a base (41) provided on the facing piece (2), and an enlarged portion (42) provided on the distal end side of the base (41),

The width dimension (W42) of the enlarged portion (42), which is the dimension along the sliding direction (S), exceeds the width dimension (W41) of the base (41), and the width dimension (W42) ) Is less than or equal to the width dimension (W2) of the opposing piece (2). Of the pressing protrusions (3), one end side (3a) and the other end in the sliding direction (S) are located. A slider for a sealed bag, wherein a dimension (W3) between the side (3b) and the width (W42) of the enlarged portion (42) is less than or equal to the width (W42).

6

2. In the sliding direction (S), the position of each edge (42b 4 2c) of the enlarged portion (42) is more than the position of each edge (22a 22b) of the facing piece (2). The slider for a sealed bag according to claim 1, characterized in that the slider is located 13 mm inside.

3. At least one side edge (22a, 22b) of the opposing piece (2) in the sliding direction (S) is provided with an alignment notch for positioning when multiple sliders (1) are stacked. (6)

The first or second aspect of the present invention, wherein the enlarged portion (42) is provided so as to be displaced in a direction orthogonal to the alignment notch (6) and the sliding direction (S). The slider for a sealed bag according to any one of 2.

4. A guide projection (5) is provided so as to protrude from at least one inner surface (22) of each of the opposing pieces (22).

The guide projection (5) is provided on the tip side of the pressing projection (3) in parallel with the sliding direction (S).

Since the guide projection (5) is provided at a predetermined distance from the distal end of the opposing piece (2) to the base end side, the distal end portions of the opposing pieces (2 2) and the guide projection are provided. The space (2b) defined by (5) and

Also, a slope (51) is provided at a portion of the guide projection (5) that is closer to the inside from both ends in the sliding direction (S),

The slope (51) is such that the height of the guide projection (5) gradually increases from the both ends toward the inside.

The sealing according to any one of claims 1 to 3, characterized in that a space (2c) defined by the slopes (51 51) of the guide projections (55) is provided. Slider for bags.

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5. A sealed bag (B) provided by bonding two resin sheets,

On the inner surface of the opening (B 1) of the sealing bag (B), there is provided a fastener member (F) including at least one pair of opposed ridges (F 1) and concave ridges (F2), The opening (B 1) can be closed by fitting the convex ridge (F 1) and the concave ridge (F 2),

At both ends of the opening (B 1), the convex (F 1) and concave (F 2) portions of the fastener member (F) are adhered together with the resin sheet to form an end seal. (B2)

In the predetermined range near the end seal (B2) of the fastener member (F), the convex ridge (F1) and the concave ridge (F2) remain fitted to block the air flow. It is always a blocking part (F3),

In closing the opening (B1), the slider (1) described in claim 1 is attached to the opening (B1), and the enlarged portion (42) of the stopper (4) is closed by the sealing bag (B). In contact with the end seal (B2) above the fastener member (F),

A sealed bag characterized in that a pressing projection (3) provided on a slider (1) abuts on the constantly blocking portion (F3) of the sealed bag (B).

6. In the opening (B1), the edge (B la) of the resin sheet on one side and the edge (B ib) of the resin sheet on the other side are vertically shifted from each other. The sealed bag according to claim 5, wherein:

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