TW201425154A - Surface fastener and bag body - Google Patents

Abstract

A set of engagement members (101, 102) which each comprise a base sheet (10) and an assembly (50k) of J-shaped hooks (50), each of the J-shaped hooks (50) having an upstanding section (50a) which rises from the main surface (10a) of the base sheet (10) and also having an arch section (50b) which extends in an arc shape from the upstanding section (50a). The assembly (50k) includes rows (FL) of J-shaped hooks, each of the rows (FL) comprising J-shaped hooks (50) arranged at predetermined intervals in the Y-axis direction. The rows (FL) of J-shaped hooks are arranged at predetermined intervals in the X-axis direction perpendicular to the Y-axis direction. J-shaped hooks (50) of one of the engagement members (101, 102) can be inserted between adjacent rows (FL) of J-shaped hooks of the other engagement member (102, 101). When engaging the engagement members (101, 102) of the set with each other, each of the J-shaped hooks (50) of the set of engagement members (101, 102) can fall elastically in the opposite directions in the X-axis direction and engage with each other.

Description

Flat fasteners and bags

This invention relates to flat fasteners and pockets, and more particularly to a hook-and-hook type of flat fastener.

It is a flat fastener that can form a flat fit and disengagement, and is used in various applications such as automobiles, daily necessities, and clothing, and can provide a flat fastener having desired characteristics for each use. In the flat fastener, there is a hook-and-loop type of "a hook of one of the engaging members and a loop of the other engaging member"; "a hook of one of the engaging members can be engaged with another engaging The hook of the member is a hook type and the like. Further, regarding the shape of the hook, various shapes such as a J-shape, an L-shape, and a mushroom type have been developed and manufactured. Each of the engaging members of the flat fastener may be a knitted fabric formed of a fiber, an injection molded article such as a synthetic resin, or a combination of the two.

Patent Document 1 and Patent Document 2 disclose a flat fastener having a J-shaped hook. In Patent Document 1, as shown in FIG. 4 and FIG. 4b of the document, a plane that is formed by the coupling between the hooks of the upper side plate 21 and the lower side plate 20 is formed. Buckle. If As shown in Fig. 2 of the document, in the same row 4, the combination of the hook 6 to the right and the hooks 7 and 8 to the left is repeatedly formed, whereby the bonding of the hooks can be favorably maintained. In paragraph 0008 of this document, it is stated that "so far, the hook of a single head, especially the hook directly made by forming, cannot obtain the fastening between the hook and the hook. This is especially due to the difficulty in improving the softness of the hook."

In Patent Document 2, as shown in FIG. 1, FIG. 2, FIG. 3, and FIG. 5 of the document, the first engaging member 10 and the second engaging member 20 are disclosed by the respective hooks. The sheets 12, 22 are joined to each other to form a snap. As is clear from the fifth drawing of the document, the arrangement interval of the hook pieces 12 of the first engaging member 10 is twice as large as the arrangement interval of the hook pieces 22 of the second engaging member 20, whereby the hook The sheet 12 can be smoothly inserted between adjacent hook pieces 22. As shown in Fig. 4 of the document, there is almost no gap between the rows of the hook pieces 22 (column A, column B, column A, column B). Further, as shown in Fig. 1 of the document, it is revealed that ribs c are provided on the hook pieces 12, 22, whereby the erection of the hook pieces 12, 22 is assisted.

Patent Document 3 discloses a flat fastener having hooks different from the hook shapes disclosed in Patent Documents 1 and 2. As shown in Fig. 1 of the document, the arrangement of the hooks 9 reveals that the distance (d) between the hooks 9 is larger than the thickness (e) of the hooks 9, thereby ensuring the hook-in-hook device. High flexibility. In the claim 4 of the document, it is defined that the separation distance (d) is at least 1.5 times larger than the thickness (e) of the hook, and more preferably 2 times larger. In the same literature, the aspect shown in Figure 3 is utilized. The hooks 9 are joined to each other.

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2007-38002

[Patent Document 2] Unexamined Japanese Patent Publication No. 5-84213

[Patent Document 3] International Publication No. 2009/004135

In the conventional J-hook type flat fastener, each card is achieved by "putting the J-hook of one of the engaging members into the space between the adjacent J-hooks of the other engaging members in the same column" Since the J-hooks of the joint members are engaged with each other, in the J-hook row, in order to allow the engagement members to engage with each other, the J-hooks are arranged at appropriate intervals. Further, regarding the arrangement direction of the J-hook rows, once the J-shaped hooks are laid down in this direction, it is difficult to form the above-described engagement by the respective J-shaped hooks of the respective engaging members, and because of the reason, the J-hooks are narrowed. The spacing, or the arrangement of ribs at the base of the J-hook, limits the lodging of the J-hook in the direction in which the J-hooks are arranged as much as possible.

In the above case, in order to secure a large engaging force of each of the engaging members, the force required for the above-described engagement may be increased. It can be seen that in the hook-hook type flat fastener, the configuration of the above-mentioned J-hook is premised.

The flat fastener of the present invention has one of snap-fit detachment a flat fastener of the group of engaging members, wherein each of the plurality of engaging members has a set of engaging members, the set of the engaging members having a "base sheet having a main surface" and "standing from the front surface of the base sheet The raised portion and the arcuate portion extending from the raised portion include: in a state in which the direction in which the arcuate portion extends from the rising portion is integrated on the same straight line, along a plurality of engaging element rows configured by arranging a plurality of the engaging elements along a first direction of the main surface of the base sheet at a predetermined interval, the plurality of engaging element rows along the base The main surface of the sheet is disposed at a predetermined interval along the "second direction orthogonal to the first direction"; the engaging element of one of the engaging members can be inserted adjacent to the other engaging member When the pair of engaging members are engaged with each other, the engaging members of the pair of engaging members are elastically hooked in opposite directions to each other in the second direction. According to this configuration, it is possible to ensure the engagement of the engaging elements different from the conventional ones with each other. It is also expected to take into account the stronger engagement of the respective engaging members and the force required to reduce the engagement of the respective engaging members. All the engaging elements do not necessarily need to form a snap in a specific manner.

When the thickness of the engaging element in the second direction is defined as W1, and the specific interval in which the adjacent engaging element is listed in the second direction is defined as W2, it conforms to 1.5≧W1/W2. ≧0.5 can be.

When the engaging element is in the "parallel to the first direction, and passes through the axis on the end point of the arcuate portion of the engaging element", the length is defined as W3, and the engaging element is on the aforementioned axis When the interval is defined as W4, it is equivalent to 1.3≧W3/W4≧0.6.

The thickness of the engaging element in the second direction may be constant within a height range of the engaging element "from the root to the apex of the engaging element that is erected on the main surface of the base sheet".

When the aforementioned one of the engaging members has been engaged, the aforementioned rising portion of the engaging member of the one of the engaging members and the rising portion of the engaging member of the other engaging member are in the card At least a part of the lamination direction of the joining member may be overlapped.

The engaging element has an inclined surface that is gradually inclined from the main surface of the base sheet, and when the pair of engaging members are engaged, the inclined surface of the engaging element of one of the engaging members, and the other The inclined surface of the engaging element of one of the engaging members may be opposite to the opposite surface.

The bag body of the present invention can be formed to be opened and closed by any of the above-described flat fasteners.

According to the invention, the engagement of the snap elements which are different from the conventional ones is at least partially ensured.

FL‧‧‧hook

10‧‧‧Base sheet

10a‧‧‧Main face

50‧‧‧J word hook

50a‧‧‧ erection

50b‧‧‧ bow

50f‧‧‧ bulging

50k‧‧‧ collection

60‧‧‧ space

70‧‧‧ gap

100‧‧‧ flat fasteners

101‧‧‧ engaging members

102‧‧‧ engaging members

Fig. 1 is a schematic perspective view showing one of the flat fasteners according to the first embodiment of the present invention and another engaging member.

Fig. 2 is a schematic plan view showing one of the flat fasteners according to the first embodiment of the present invention and another engaging member.

Fig. 3 is a schematic view showing a state in which the upper side engaging member and the lower side engaging member are opposed to each other in a side view of one of the flat fasteners according to the first embodiment of the present invention.

Fig. 4 is a schematic view showing a state in which the upper side engaging member and the lower side engaging member are engaged with each other, in a state in which one or the other of the engaging members of the flat fastener according to the first embodiment of the present invention is engaged. .

Fig. 5 is a schematic X-axis side view showing one of the flat fasteners according to the first embodiment of the present invention, which is a state in which the upper engaging member and the lower engaging member are opposed to each other.

Fig. 6 is a schematic X-axis side view showing one of the one or the other engaging members of the flat fastener according to the first embodiment of the present invention, showing the state in which the upper engaging member and the lower engaging member are engaged. .

Fig. 7 is a schematic side view showing the X-axis side of a group of J-hooks according to the first embodiment of the present invention, showing the upper J-hook and the lower J-hook, and being elastic. The state in which the ground falls in the direction of the X-axis.

Fig. 8 is a schematic side view showing the X-axis side of a group of J-hooks according to the first embodiment of the present invention, schematically showing the process of forming the upper J-hook and the lower J-hook. A state in which they are inverted in opposite directions in the X-axis direction.

Fig. 9 is a view showing a state in which a pair of engaging members constituting the flat fastener according to the first embodiment of the present invention are attached to the inner side surface of the opening of the bag.

Figure 10 is a plan view showing a flat fastener according to a second embodiment of the present invention. A schematic top view of one/the other engaging member.

Fig. 11 is a schematic plan view showing one of the flat fasteners of the third embodiment of the present invention and another engaging member.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The respective embodiments are not independent of each other, and need not be described excessively. As long as they are in the field, they can be combined as appropriate, and the multiplication effect by the combination can be understood. Repeated descriptions between the embodiments are omitted in principle.

The reference drawings are intended to illustrate the invention as a primary object and are therefore briefly simplified. In these figures, the XYZ coordinates are moderately indicated. As can be seen from Fig. 1, the Y-axis (first direction) is a J-hook arrangement direction in which a plurality of J-hooks are arranged at a specific interval in a state in which the directions of the J-hooks are integrated on the same straight line. Is along the direction of the sheet surface. Further, the Y-axis is also the longitudinal direction/extending direction of the J-hook row formed by the arrangement of the J-hooks. The X-axis (second direction) is a direction in which the long J-shaped hook rows on the Y-axis are arranged side by side at a specific interval, that is, the J-hook row arrangement direction is formed on the sheet surface to form a straight line to the Y-axis. direction. The Z axis is the height direction of the J-hook, and is a direction orthogonal to the "plane defined by the X-axis and the Y-axis". In the following description, the X-axis, the Y-axis, and the Z-axis are described as reference/reference.

<First embodiment>

The first embodiment will be described with reference to Figs. Fig. 1 is a schematic perspective view of one of the flat fasteners/another engaging member. Fig. 2 is a schematic plan view showing one of the flat fasteners and the other engaging member. Fig. 3 is a schematic Y-axis side view of one of the flat fasteners/another engaging member, wherein the upper engaging member and the lower engaging member are opposed to each other. Fig. 4 is a schematic Y-axis side view of one of the flat fasteners/another engaging member, wherein the upper engaging member is engaged with the lower engaging member. Fig. 5 is a schematic X-axis side view of one of the flat fasteners/another engaging member, wherein the upper engaging member is opposed to the lower engaging portion. Fig. 6 is a schematic X-axis side view of one of the flat fasteners/another engaging member, wherein the upper engaging member is engaged with the lower engaging member. Figure 7 is a schematic side view of a schematic X-axis of a set of J-hooks that can be engaged, wherein the upper J-hook is opposite the lower J-hook and resiliently collapses in the X-axis direction. Figure 8 is a schematic side view of the X-axis of a set of J-shaped hooks that can be engaged, schematically showing the upper J-hook and the lower J-hook during the engagement, in the X-axis direction The state of the opposite direction lodging. Fig. 9 is a view showing a state in which a group of engaging members constituting the planar fastener has been attached to the inner side surface of the opening of the bag.

The plurality of engaging members 101/102 constituting the flat fastener 100 are members in which a plurality of J-shaped hooks (engaging members) 50 are regularly arranged on the main surface 10a of the flat base sheet 10, by means of the respective cards. The engagement/non-engagement of the J-shaped hooks 50 of the joint members 101/102 achieves planar engagement and disengagement of the respective engagement members 101/102. Engagement member 101/102, basic The upper part is manufactured by mold molding of a resin material. Examples of the resin material to be used include nylon, polyester, polypropylene, polyethylene, and thermoplastic elastomer. From the viewpoint of appropriately securing the elastic displacement according to the J-hook 50, it is preferable to use linear low-density polyethylene (LLDPE) as a resin material.

On the other hand, the flat fastener 100 of the present embodiment is not a loop-hook type but a hook-hook type, and the one set of the joint members 101/102 has the same structure and can be manufactured by the same manufacturing apparatus. The engaging members 101/102 can be fixed to an arbitrary object, and can be fixed to the object by an adhesive, for example, or can be fixed to the object by sewing. Although the engaging members 101/102 constitute a rectangular shape, they are not limited to the aforementioned outer shape.

As shown in Fig. 1, a set 50k of J-shaped hooks 50 is provided on the base sheet 10, and a plurality of J-shaped hooks 50 are provided on the main surface 10a of the base sheet 10. The set 50k of J-hooks 50 is arranged in a two-dimensional shape, and includes a matrix arrangement of J-hooks 50. More directly, the set 50k of the J-shaped hooks 50 includes a J-shaped hook in which "a plurality of J-shaped hooks 50 are arranged at regular intervals in a state in which the directions of the J-shaped hooks 50 are integrated on the same straight line". Columns, and the J-hook rows are arranged laterally in the X-axis direction. The J-hook row is specified by the figure number FL in Fig. 2, and the direction of the J-hook 50 is aligned in the direction in which the arcuate portion 50b, which will be described later, extends from the rising portion 50a.

The matrix arrangement of the set of 50k/J-word hooks 50 of the J-hook 50 is further described. In the first drawing, when the Y axis is the row direction and the X axis is the column direction, the J-shaped hooks 50 arranged in the first row and the first column are represented by the figure numbers (1, 1), and are arranged in the first row. The J-shaped hooks 50 of the 1st row and the 13th column are represented by the figure numbers (1, 13), and the J-shaped hooks 50 arranged in the 8th row and the 1st column are represented by the figure numbers (8, 1). The J-hook 50 disposed in the eighth row and the thirteenth column is represented by a figure number (8, 13). The J-directions of the J-hooks 50 disposed in the first row are on the same straight line, apparently integrated on the axis AX3, and the same description applies to other lines. Although the number or density of the J-shaped hooks 50 included in the set 50k of the J-hooks 50 is arbitrary, it is preferable that the number of the J-shaped hooks 50 per 1 cm ² is 30 to 1000, and more preferably 50 to 500. .

The engaging members 101/102 are individually displayed in Figs. 2(a) and (b). As shown in Fig. 2 (a) and (b), J-hook rows FL (FL1 to FL6) are arranged on the main surface 10a of the base sheet 10 of the engaging members 101/102 at a constant interval W2. The J-hook thickness W1 of the J-hook 50 in the X-axis direction is constant in the height range from the root of the J-hook 50 to the apex of the J-hook 50, and is not laterally in the X-axis direction of the J-hook 50. Ribbed. In the present embodiment, it is predetermined that the engaging members 101/102 are engaged by the X-axis direction of the J-shaped hooks 50, instead of the Y-axis direction of the J-shaped hooks 50, so that it is not required as in the conventional art. The lodging of the J-hook 50 in the X-axis direction is suppressed. However, it is possible to allow a rib having a small height in the lateral direction of the X-axis direction of the J-hook 50. By making the J-shaped hook 50 non-ribbed, it is possible to achieve a reduction in the amount of raw materials used and a simplification of the construction of the forming mold.

Regarding the relationship between the J-hook interval W2 and the J-hook thickness W1, it is not expected that there is a large difference between the values of the two. Assume that the J word is hooked In the case where the interval W2 is farther than the allowable range of the J-hook thickness W1, even if the engaging member 101 and the engaging member 102 are engaged by the lodging of the J-shaped hook 50 in the X-axis direction, it is because one of them The displacement in the other direction of the X-axis causes the two to easily detach. It is assumed that in the case where the J-hook interval W2 is much smaller than the allowable range of the J-hook thickness W1, since the lodging of the J-hook toward the X-axis direction cannot be sufficiently performed, it is difficult to make it difficult to pass the J-hook 50 toward The engagement of the engaging member 101 and the engaging member 102 is caused by the lodging in the X-axis direction.

In consideration of the relationship between the J-hook interval W2 and the J-hook thickness W1 as described above, it is possible to sufficiently ensure the separation of the engaging members due to the relative movement of the engaging members in the X-axis direction. The hook of the word hook in the direction of the X-axis is expected to conform to 1.5≧W1/W2≧0.5, or 1.5>W1/W2>0.5. Among them, it is better to meet 1.4≧W1/W2≧0.7. It is best to meet 1.3≧W1/W2≧0.9.

In the third and fourth figures, the lower engaging member 101 and the upper engaging member 102 are shown before and after the engagement with the line of sight along the X-axis. In the fifth and sixth figures, the lower engaging member 101 and the upper engaging member 102 are shown before and after the engagement with the line of sight along the Y-axis.

In the third and fourth figures, for the convenience of explanation, the identification numbers 51 to 56 are indicated for the J-shaped hooks 50 in the drawing range and used as the figure numbers. Focusing on the J-hook 51, the structure of the J-hook will be described. The J-shaped hook 50 has: a rising portion 50a rising from the main surface 10a of the base sheet 10 in the Z-axis direction; and a top portion of the rising portion 50a extending along the main surface 10a of the base sheet 10 An arcuate arcuate portion 50b. The upper surface 50b1 of the arcuate portion 50b is a curved surface, thereby giving a gentle touch. For the same reason, the front end face 50b2 of the arcuate portion 50b is also a curved surface. The upper surface 50b1 of the arcuate portion 50b is formed to coincide with the top surface 50p to be described later.

As shown in Fig. 3, the Y-axis width of the rising portion 50a is gradually reduced corresponding to the separation from the main surface 10a of the base sheet 10, and the root width of the rising portion 50a is larger than the top width of the rising portion 50a. It is wide, whereby the rigidity of the J-hook 50 can be ensured without increasing the X-axis width of the rising portion 50a. The Z-axis material thickness of the arcuate portion 50b is slightly thinner than the front end side.

Focusing on the J-hook 53, the construction of the hook is further explained. The J-shaped hook 50 has a front face 50m which is slightly erected from the main face 10a of the base sheet 10 corresponding to the erection toward the Z-axis direction; and a erection corresponding to the Z-axis direction, from the main body of the base sheet 10. The surface 10a is slowly inclined toward the front end side of the hook (inclined surface) 50n, and has a back surface 50n which is inverted in an arc shape toward the front end side of the hook, and which is convex toward the side separated from the base sheet 10. a top surface 50p; and an arcuate shape that is inverted from the front surface 50m toward the front end side of the hook, and the arc shape is a convex inner surface 50q toward the side separated from the base sheet 10; and is connected to the top surface 50p and the inner surface 50p An arc-shaped front end surface 50g between the faces 50q.

The arcuate portion 50b of the J-shaped hook 50 includes a bulging portion 50f which is located on the hook front end side more than the front surface 50 m. The length W3 and the axis of the J-shaped hook 50 on the axis AX5 of the "the front end point 50d of the arcuate portion 50b of the J-hook 50" are parallel to each other in the arrangement direction of the J-shaped hook 50. The interval W4 of the J-hook 50 on the AX5 is as follows. The front end point 50d is the point farthest from the rising portion 50a in the Y-axis direction among the bulging portions 50f of the arcuate portion 50b of the J-shaped hook 50, and the axis AX5 is parallel to the Y-axis and passes through the front end point 50d. A virtual line on the top. Further, the interval W4 of the J-hook is a front end point 50d of a certain J-shaped hook 50, and the "axis AX5 intersects the inclined surface 50n of the back surface of the J-shaped hook 50 on the front side of the certain J-shaped hook 50". The distance between the contacts.

Regarding the relationship between the J-hook length W3 and the interval W4, it is not expected that there is a great difference between the numerical values of the two. In the case where the interval W4 is farther than the allowable range from the J-hook length W3, even if the engaging member 101 and the engaging member 102 are engaged by the lodging of the J-shaped hook 50 in the X-axis direction, the engaging member 101 is engaged with the engaging member 102. It is possible to easily separate the two by displacement of one of them to the other in the Y-axis direction. It is assumed that in the case where the interval W4 is far smaller than the allowable range than the J-hook length W3, the engagement between the engaging member 101 and the engaging member 102 is rather dependent on the lodging of the J-shaped hook toward the X-axis direction, so that the card The engagement state of the engaging member 101 and the engaging member 102 is limited, and there is a fear that "there is a need for considerable force to enable the two to be engaged".

In view of the relationship between the J-hook length W3 and the interval W4 described above, in order to achieve both the "adhesion of the engagement members" and the "degree of freedom in securing the engagement of the J-hooks", it is expected Can meet 1.3≧W3/W4≧0.6, or 1.3>W3/W4>0.6. Among them, it is in line with 1.2≧W3/W4≧0.7. It is better to comply with 1.1≧W3/W4≧0.8.

As can be seen from FIGS. 3 and 4, when the upper engaging member 102 and the lower engaging member 101 are engaged with each other, the arcuate portion 50b of the pair of J-shaped hooks 54 is entered into the "J-shaped hook 51". A space 60 between the arcuate portion 50b" and the "main surface 10a of the base sheet 10". The arcuate portion 50b of the J-hook 54 is located between the rising portion 50a of the J-shaped hook 51 and the rising portion 50a of the J-shaped hook 52, and occupies the space 60 therebetween.

As shown in FIG. 4, when the engaging members 101, 102 are engaged, the rising portion 50a of the J-shaped hook 52 of the engaging member 101 and the rising portion of the J-shaped hook 54 of the other engaging member 102 are as shown in FIG. 50a, an overlap is formed in the lamination direction of the engaging members 101, 102. Referring to Fig. 4, the vertical direction of the J-shaped hook 52 is shown in the range R10 shown in Fig. 4 in which the interval between the front faces 50m of the adjacent J-shaped hooks 52 and 54 facing each other is 50 m. The rising portion 50a is located on the rising portion 50a of the J-shaped hook 54, and the fourth drawing is viewed from the front view, and the rising portion 50a of the J-shaped hook 52 and the rising portion 50a of the J-shaped hook 54 are stacked on the upper and lower sides. To further exemplify, the rising portion 50a of the J-shaped hook 54 and the rising portion 50a of the J-shaped hook 52 are disposed at a position which is divided into two in the range R10 shown in FIG. 4, and is parallel to the Z. On the axis L10 of the axis, the fourth figure is viewed from the front view direction, and the two are superposed on the upper and lower sides. According to the high-density arrangement of the J-shaped hooks 54, the engaging force of the engaging members 101 and 102 can be made extremely excellent. The lamination direction of the engaging members 101 and 102 is a direction in which the other engaging member is attached to one of the engaging members, and more specifically, in the case of viewing the fourth drawing from the front view, along with the Z The vertical direction of the shaft is the same. When the engaging members 101, 102 have been engaged, the following aspects are formed: the J character of one of the engaging members 101 The back surface 50n of the hook 52 is opposed to the back surface 50n of the J-shaped hook 54 of the other engaging member 102, and the other back surface 50n is placed on the back surface 50n of one of them. By the high-density arrangement of the J-shaped hooks 54, the engaging force of the engaging members 101, 102 can be made very sufficient.

The boundary between the rising portion 50a and the arcuate portion 50b can be arbitrarily set, for example, by passing through the lowermost point 50c of the "bulging portion 50f of the arcuate portion 50b closest to the base sheet 10", and parallel to The axis AX7 of the Y axis serves as a boundary line.

As can be seen from Fig. 5 and Fig. 6, a gap is maintained between the rows of the J-hooks 50 before and after the engagement. As schematically shown in Fig. 5, each of the J-shaped hooks 50 has a pair of side faces 50j (50j1, 50j2) in the arrangement direction of the J-hook row FL. Between each side 50j of the arcuate portion 50b and the top surface 50p, there is a set of upper edges 50i (50i1, 50i2). Between each side surface 50j of the arcuate portion 50b and the inner surface 50q, there is a set of lower edges 50u (50u1, 50u2). In the fifth and sixth figures, the outline of the J-shaped hook 50 is drawn by a straight line or a right angle for the convenience of labeling. However, the present invention is not limited thereto, and the edge of the J-shaped hook 50 may be R-shaped.

In the present embodiment, as schematically shown in Fig. 7, unlike the conventional J-hook type flat fastener, the J-hooks 50 of the upper engaging member 102 and the lower engaging member 101 can be in the X-axis direction. The upper side is rocked within a specific range, and the interval of the J-hook line FL is set in order to allow the aforementioned shaking. The interval of the J-hook row FL can be set to such an extent that the J-hook row FL of one of the engaging members is inserted between the J-hook rows FL of the other engaging member. In this case, when the upper side is engaged When the member 102 is engaged with the lower engaging member 101, in the set 50k of the J-shaped hooks 50 of the upper engaging member 102, "the state shown in Fig. 8 is displayed, and the lower side is inserted. The J-hook 50 of the "interval of the width W2 of the J-hook row FL of the member 102", as shown by the dotted arrow D1 in Fig. 8, causes the upper and lower J-shaped hooks 50 to be retracted from each other in the X-axis direction. Lodging or twisting in the opposite direction, after which the upper and lower J-shaped hooks 50 are engaged. On the other hand, in Fig. 7, the lodging center is provided in the joint portion 50r of the J-shaped hook 50 coupled to the base sheet 10, and the arcuate portion 50b of the J-shaped hook 50 is inverted in the X-axis direction with the joint portion 50r as the center.

The above-described engagement state will be further described on the premise that the paper sheets of Figs. 7 and 8 are viewed from the front view. When the arcuate portion 50b of the upper J-hook 50 hits the arcuate portion 50b of the lower J-hook 50 and the other force of reversing acts between the two, the dotted line arrow as shown in Fig. 8 As exemplified in D1, in response to the above state, the upper J-hook 50 will have a certain degree of lodging toward the right side in the X-axis direction, and the lower J-hook 50 will have the same degree of lodging toward the left side in the X-axis direction, in the process. In the state in which the top surface 50p of the arcuate portion 50b of the upper J-shaped hook 50 and the top surface 50p of the arcuate portion 50b of the lower J-shaped hook 50 are in contact with each other, the upper edge 50i1 of the upper J-shaped hook 50 passes over The upper edge 50i2 of the side J-shaped hook 50 forms a state in which the side surface 50j1 of the arcuate portion 50b of the upper J-shaped hook 50 and the side surface 50j2 of the arcuate portion 50b of the lower J-shaped hook 50 are in contact with each other. After that, the side surface 50j1 of the arcuate portion 50b of the upper J-shaped hook 50 slides on the side surface 50j2 of the arcuate portion 50b of the lower J-shaped hook 50, and the lower edge 50u1 of the upper J-shaped hook 50 (Fig. The lower surface 50u2 of the lower J-hook 50 is passed over the lower surface 50q of the lower J-hook 50, and the inner surface 50q of the lower J-hook 50 faces the inner surface 50q of the lower J-hook 50.

As described above, the arcuate portion 50b of the upper J-hook 50 is along the circumferential direction around the Y-axis as indicated by the arrow D2 of Fig. 8, and more specifically, along the arcuate portion 50b of the lower J-hook 50. The extending direction/around the bulging direction of the bulging portion 50f, and over the arcuate portion 50b of the lower J-hook 50, causes the arcuate portion 50b of the upper J-hook 50 to mesh with the arcuate portion 50b of the lower J-hook 50 . Alternatively, the overhanging action of the arcuate portion 50b of the upper J-hook 50 to the arcuate portion 50b of the lower J-hook 50 may be understood as the bulging portion 50f of the upper J-hook 50 to the lower J-hook 50. The overhanging action formed by the bulging portion 50f. Although the arcuate portion 50b of the upper J-shaped hook 50 is formed over the arcuate portion 50b of the lower J-hook 50, the arcuate portion 50b of the lower J-hook 50 is formed to be formed by the arcuate portion 50b of the upper J-hook 50. The movement is repeated, but for convenience of explanation, the bow portion 50b of the upper J-hook 50 will be described.

According to this configuration, unlike the conventional one, it is not necessary to "expand the Y-axis interval of the J-hook 50" or "to make the J-hook 50 fall toward the Y-axis direction", even if the Y-axis interval of the J-hook 50 is reduced, The engagement of the upper engaging member 102 and the lower engaging member 101 is ensured. By adopting such a "the hooking of the J-shaped hook in the X-axis direction and the engagement of the engaging members", the arrangement of the J-hooks 50 in the J-hook row FL is reduced, and the upper engagement is improved. The engagement force between the member 102 and the lower engaging member 101 can also prevent the "force required for engaging the upper engaging member 102 and the lower engaging member 101" to be higher than the allowable range.

Regarding the above-mentioned W1, W2, W3, and W4; and the hook height H10 shown in FIG. 3, it is preferable to comply with the first condition listed in Table 1, and if it is in compliance with the second condition, it is in conformity with 3 conditions are optimal. Thereby, the engaging member can be optimally engaged by the lodging of the J-shaped hook in the X-axis direction. The hook height H10 is an interval from the main surface 10a of the base sheet 10 to the apex 50e of the J-shaped hook 50, and is schematically shown in Fig. 3.

On the premise that the J-hook is not prevented from falling in the X-axis direction, ribs may be provided to the J-hook 50 to assist the erection of the J-hook 50 on the base sheet 10. If the height of the rib from the main surface 10a of the base sheet 10 to the apex of the rib is defined as Hrib, it is preferable to conform to the first condition shown in Table 2, and if it is better to comply with the second condition, it is in accordance with the third condition. The conditions are optimal. On the other hand, as shown in Fig. 3, B is the height from the main surface 10a of the base sheet 10 to the lowermost point 50c on the side of the base sheet 10 of the bulging portion 50f. Each condition of Table 1 corresponds to each condition of Table 2. For example, when a rib conforming to the first condition of Table 2 is provided, the parameter regarding the J-hook conforms to the first condition of Table 1.

The general description can be clearly seen, preferably 1.5 ≧ W1/W2 ≧ 0.5, and 1.3 ≧ W3 / W4 ≧ 0.6. Or preferably it is 1.5>W1/W2>0.5, and 1.2>W3/W4>0.6. The numerical range described above is a numerical value including a certain degree of estimation. However, at least in the examples shown in the following Table 3, it was confirmed that the engagement members were in good contact with each other. In various embodiments, ribs are not provided at the root of the J-hook. If the numerical range is examined in accordance with Examples 1 to 3, the range of W3/W4 can be defined as 1.00 ± -0.5 or 1.00 ± -0.25, and the range of W1/W2 can be defined as 1.2 ± 0.5 or 1.2 ± -0.25. .

Finally, the case where the flat fastener 100 is used as the opening and closing device of the flat pocket 200 will be described with reference to FIG. As shown in Fig. 9, the flat pocket 200 is a set of plastic sheets 201 and plastic sheets 202 having the same rectangular shape, and three sides are subjected to thermocompression bonding and the remaining one side forms an open bag. a pair of engaging members 101 and 102 are fixed to the inner side surface of the plastic sheet 201 extending along the open side and the inner side surface of the plastic sheet 202 by thermocompression bonding. In the flat pocket 200, the engaging member 101, 102 forms a relative orientation. The engagement of the engaging member 101 of the plastic sheet 201 with the plastic sheet 202 The member 102 is formed to be engaged to close the opening 210 of the flat pocket 200, and the opening 210 of the flat pocket 200 can be opened by the disengagement of the engaging member.

By using the flat fastener 100 of the present embodiment as a bag opening and closing device, unlike the case of using a conventional linear rail fastener, it has been found that the bag can be easily opened and closed. Further, by keeping the respective engaging members 101 and 102 with appropriate flexibility, the flexibility of the flat pockets 200 can be prevented by the respective engaging members 101 and 102. When the flat pocket 200 is used as a drain bag, the gap 70 between the J-shaped hooks 50 in the same row shown in Fig. 2 can promote the passage of water. The specific materials of the plastic sheets 201 and 202 are arbitrary, such as aluminum-deposited plastic sheets. The type of bag is not limited to a flat pocket, but may be any other type of bag.

<Second embodiment>

Fig. 10 is a schematic plan view showing one of the flat fasteners of the second embodiment and the other engaging member. In the present embodiment, laterally adjacent J-hook rows FL of the J-hook row FL are disposed adjacent to each other in the lateral direction of the gap 70 between the adjacent J-hooks 50 in a certain J-hook row FL. J word hook 50. Thereby, in addition to the points described in the first embodiment, the adhesion/sealing property of the flat fastener 100 can be improved satisfactorily.

As shown in Fig. 10, the J-hook rows FL1 and FL2 having the same arrangement intervals of the J-shaped hooks 50 adjacent in the X-axis direction are compared with the J-hook row FL1, and the J-hook row FL2 is oriented in the Y-axis direction. Offset, and the X-axis of "the gap 70 between adjacent J-hooks 50 is formed in the J-hook column FL1" On the side of the direction, a J-hook 50 of the J-hook row FL2 is disposed. Thereby, the adhesion/sealing property of the flat fastener 100 can be improved, and in particular, when the flat fastener is used as an opening and closing device for the opening of the bag, it is expected that the sealing property of the bag can be improved. As shown in Fig. 10, the unit of the J-hook row formed by the J-hook line FL1 and the J-hook line FL2 forms a set 50k which is continuous in the X-axis direction and constitutes the J-shaped hook 50.

<Third embodiment>

Fig. 11 is a schematic plan view showing one of the flat fasteners of the third embodiment and another engaging member. In the present embodiment, the hook direction of the J-shaped hooks 50 constituting the J-hook row FL is reversed between the adjacent J-hook rows FL. Even in such a case, the same effects as those of the "structure described in the above embodiment" can be obtained. The disclosure of this embodiment can also be employed in the second embodiment.

As shown in Fig. 11, the J-hook rows FL1 and FL2 in which the arrangement intervals of the J-shaped hooks 50 are the same and laterally juxtaposed constitute the direction of the J-shaped hooks 50 of the J-hook row FL2, compared to the J-shaped hook columns. The direction of the J-hook 50 of FL1 is in the opposite direction. Thereby, the degree of freedom of engagement of each of the engaging members 101 and 102 can be limited to a specific range.

After the above description, as long as the industry players can add various changes to the various embodiments. The drawing numbers indicated in the patent application scope are only the drawing numbers for reference, and the technical features disclosed in the patent application scope of the present application are not limited to the drawing numbers.

AX3‧‧‧ axis

X‧‧‧J word hook arrangement direction

Y‧‧‧J-hook configuration direction

The height direction of the Z‧‧‧J hook

100‧‧‧ flat fasteners

101/102‧‧‧ engaging members

10‧‧‧Base sheet

10a‧‧‧Main face

50‧‧‧J word hook

50k‧‧‧ collection

(1, 1) ‧ ‧ refers to the J-hook in the first column of the first row

(1, 13) ‧ ‧ refers to the J-hook of the 13th column of the first row

(8, 1) ‧ ‧ refers to the J-hook of the eighth column and the first column

(8, 13) ‧ ‧ refers to the J-hook of the 13th row and 13th column

Claims (7)

A flat fastener is a flat fastener (100) having a set of engaging members (101, 102) that can be engaged and disengaged, wherein the set of engaging members (101, 102) respectively have a snap fit a collection (50k) of elements (50) having a base sheet (10) having a major surface (10a); and the aforementioned major surface from the base sheet (10) 10a) a raised erected portion (50a); and an arcuate portion (50b) extending from the erected portion (50a) and having a plurality of engaging element rows (FL), the engaging element row ( FL) is a state in which the direction in which the arcuate portions (50b) extend from the rising portion (50a) is integrated on the same straight line, along the aforementioned main surface of the base sheet (10) at a specific interval (10a) and configured by arranging a plurality of the aforementioned engaging elements (50) along the first direction (Y-axis), and the plurality of engaging element rows (FL) are along the base sheet at a specific interval ( 10) the main surface (10a), and disposed along a second direction (X-axis) that forms an orthogonal direction to the first direction (Y-axis); the aforementioned engaging element of one of the engaging members (101, 102) (50), can be inserted into another Adjacent engaging member (102, 101) of the engaging element row (FL) between the current set of said engaging member (101, 102) is engaged, the one set of Each of the engaging elements (50) of the engaging members (101, 102) is elastically reciprocally opposed to each other in the opposite direction in the second direction (X-axis). The flat fastener according to the first aspect of the invention, wherein the thickness of the engaging element (50) in the second direction (X-axis) is defined as W1, and the adjacent engaging component is adjacent. When the specific interval of the column (FL) in the second direction (X-axis) is defined as W2, it corresponds to 1.5 ≧ W1/W2 ≧ 0.5. The flat fastener according to claim 2, wherein the length of the engaging element (50) on the axis (AX5) is defined as W3, and the engaging element (50) is on the aforementioned axis (AX5). When the upper interval is defined as W4, it conforms to 1.3≧W3/W4≧0.6, and the aforementioned axis (AX5) is parallel to the first direction (Y-axis) and passes through the aforementioned bow portion of the aforementioned engaging element (50) ( 50b) on the front end point (50d). The flat fastener according to the first, second or third aspect of the invention, wherein the thickness of the engaging element (50) in the second direction (X-axis) is erected from the base sheet (10) The height of the aforementioned engaging element (50) of the aforementioned engaging surface (10) on the main surface (10a) is constant within the height range of the engaging element (50). The flat fastener according to claim 1, 2, 3 or 4, wherein when the aforementioned one of the engaging members (101, 102) is engaged, one of the engaging members (101, 102) The aforementioned rising portion (50a) of the engaging member (50) and the aforementioned rising portion of the engaging member (50) of the other engaging member (101, 102) (50a) at least partially overlaps in the laminating direction of the engaging members (101, 102). The flat fastener according to claim 1, 2, 3, 4 or 5, wherein the engaging element (50) has a slight inclination from the front surface (10a) of the base sheet (10) The inclined surface (50n), when the aforementioned one of the engaging members (101, 102) has been engaged, the inclined surface (50n) of the engaging element (50) of one of the engaging members (101, 102) The inclined surface (50n) of the engaging element (50) of the other engaging member (101, 102) forms an opposing surface. A bag body that can be opened and closed by the flat fastener (100) according to any one of claims 1 to 6.