TWI536926B - Zipper chain cover and zipper chain - Google Patents

Description

Chain cover for zipper and zipper chain

The present invention relates to a chain zipper chain body for maintaining a meshing state of a fastener element of a zipper chain which is connected to a chain zipper when engaged, and a zipper chain to which the fastener chain is attached.

Previously, in the zipper in which a pair of sprocket teeth were engaged by the slider, an anti-separator for the fastening member which maintains the meshing state and prevents the separation of the sprocket is used. For example, the invisible fastening member disclosed in Patent Document 1 is provided with an elastic body in which two clamping portions are protruded from the base portion while being spaced apart from each other, and the interval between the clamping portions is formed to be capable of clamping the invisible buckle. The narrowing part of the knot. Further, the base portion is curved with respect to the nip portion so that the surface including the base portion intersects the surface including the respective nip portions, and the base portion is formed with a width capable of holding the sprocket mounting piece and is available for the sprocket A gap of a size that is inserted through the mounting piece.

Further, there is a stopper that is attached to the fastener element of the zipper to prevent the movement of the slider. For example, the stopper disclosed in Patent Document 2 includes an upper wall and two side walls which are adjacently formed to form two outer portions of the parallel and elastic protrusions, and have a strong body that divides the groove passing therethrough. Moreover, it is not easy to damage the fastener elements of the zipper, and it is detachable.

Prior technical literature Patent literature

Patent Document 1: Japanese Patent Publication No. Sho 54-91906

Patent Document 2: US Published Patent Publication No. 2008/0196219

In the case of the above-described background art, the anti-separator for the concealed fastening member of Patent Document 1 is attached by being attached only to the fastener element, so that it is easy to fall off. Moreover, it is suitable for a clasp having a spiral shape of a sprocket, and is not suitable for a clasp having a sprocket of a shape other than the above. Further, the stopper portion of Patent Document 2 is attached to a fastener element to prevent the movement of the slider, and does not have a function of preventing separation of one of the meshing states from the fastener element.

In recent years, a zipper has been used in the joining of a covering material for covering a seat such as a floor covering a carpet or a seat. Such a zipper has almost no chance of being pulled apart or closed again after the covering material is attached to the mat. Therefore, a chain cover for preventing separation which is attached to a fastener chain is sought, so that the state in which the fastener elements are in a chain-like engagement can be surely maintained even when, for example, the slider is removed from the slide.

The present invention has been made in view of the above problems in the background art, and an object thereof is to provide a slide fastener which is connected to a chain shape when a fastener element is engaged, which has a simple structure and is easy to handle, and can reliably maintain the meshing of a pair of left and right fastener elements. The zipper chain cover of the state and the zipper chain to which the chain cover is mounted.

The present invention relates to a chain cover for a zipper, which is attached to a zipper chain and prevents separation of the sprocket rows from each other, the zipper chain comprising: a pair of left and right cloth members; and the pair of chain rows, And the plurality of fastener elements that are alternately arranged along the longitudinal direction of the tape member in the edge of the side of the tape member facing each other; and the chain cover body of the fastener is provided with a plate-shaped base end portion. Mounting opposite to the end of the tape member of the zipper chain; a positive engagement portion extending from the base end portion and overlapping the front surface of the tape member; and a back engaging portion from the base The end portion extends and overlaps the back surface of the tape member; and includes a pair of slits between the positive engaging portion and the back engaging portion, which are wider than the thickness of the tape member, and are a thickness dimension of the fastener element in a thickness direction of the tape member is narrow; and a storage portion formed between the pair of slits, and at least one end of the element row arranged to be engaged with the tape is disposed at an end of the tape end Chain a tooth and a fastener element adjacent to the end sprocket; and the insertion portion of the positive engagement portion and the back engagement portion opposite to the base end portion is provided as an opening for the insertion of the fastener element The port, the insertion opening communicates with the slit and the accommodating portion, and is formed to be smaller than the sprocket, and the positive engagement portion and the back engagement portion are elastically deformable in a direction separating from each other, and are elastically deformed And it becomes the size that the above-mentioned fastener element can pass through the above-mentioned insertion opening.

At least one of the positive engagement portion and the back engagement portion includes a hollow portion including a space in which one of the storage portions is formed. Further, the positive engagement portion includes a pair of right side wall portions extending toward the back engagement portion side, and the back engagement portion includes a pair of opposite side wall portions extending toward the positive engagement portion side, and the The slit is formed between the front side wall portion and the back side wall portion.

The edge portion of the insertion opening of the positive engagement portion includes a positive side step portion extending inwardly so that the insertion opening is narrower than the size of the fastener element, and the back side engagement portion is The edge portion of the insertion opening has a back side step which extends inward so that the insertion opening is narrower than the size of the element teeth.

The positive engagement portion and the back engagement portion are formed in a rectangular frame shape, and the storage portion is opened to the front surface and the back surface of the tape member by the hollow portion.

Moreover, the present invention is a zipper chain in which the zip fastener chain cover is attached, and the sprocket includes a design portion that is independently disposed in the longitudinal direction of the tape member when engaged. And disposed on a front side of the tape member; and an engaging portion disposed on a back side of the tape member and engaged with the adjacent fastener element; and the front end of the element and the design portion and A tape storage groove is formed between the engagement portions at the edge of the tape member on the storage side at the time of meshing.

The sprocket row is aligned with the center line in the longitudinal direction of the element row on the tape member side at the time of meshing, and the center line in the longitudinal direction of the element row on the other tape member side.

The chain cover system for a zipper of the present invention is used for connecting the chain teeth into a chain shape when meshing The zipper is simple in structure and easy to handle, and can reliably maintain the meshing state of the sprocket.

The zipper chain of the present invention has high design, and even if the zipper chain cover of the present invention is attached, it can be used without degrading the design to maintain the meshing state well.

10‧‧‧Zipper chain cover

12‧‧‧ zipper

13‧‧‧ zipper chain

14‧‧‧ sprocket

14a‧‧‧ sprocket

14b‧‧‧ sprocket

15‧‧‧Chain row

16‧‧‧ cloth tape components

16a‧‧‧Edge

16b‧‧‧End

16c‧‧‧ positive

16d‧‧‧back

18‧‧‧Sliding parts

20‧‧‧ base end

22‧‧‧正卡部部

22a, 26a‧‧ hollow

23‧‧‧ Positive side wall

24‧‧‧ Storage Department

25‧‧‧back side wall

26‧‧‧ Back Engagement Department

28‧‧‧Slit

30‧‧‧Inlet

31‧‧‧Chamfering

32‧‧‧ front side

32a‧‧‧1st wall

32b‧‧‧2nd wall

33‧‧‧ Back side steps

33a‧‧‧3rd wall

33b‧‧‧4th wall

34‧‧‧Design Department

36‧‧‧Meshing Department

36a‧‧‧ base

36b‧‧‧Meshing head

36c‧‧‧ neck

38‧‧‧ cloth with fixing groove

40‧‧‧ cloth storage slot

42‧‧‧Clock Department

Fig. 1 is a front elevational view showing a state in which a chain cover for a slide fastener according to an embodiment of the present invention is used.

Fig. 2 is a front view showing a state in which the chain cover for a slide fastener of the embodiment is used.

Fig. 3 is a perspective view of the chain cover body for a slide fastener of the embodiment.

Figure 4 is a cross-sectional view taken along line B-B of Figure 1.

Figure 5 is a cross-sectional view taken along line A-A of Figure 1.

Figure 6 is a partially enlarged cross-sectional view taken along line C-C of Figure 2;

Figure 7 is a longitudinal sectional view taken along line D-D of Figure 5.

Fig. 8 is a vertical cross-sectional view showing a state in which the chain cover for a slide fastener of the embodiment is attached.

Fig. 9 is a longitudinal sectional view showing a state in which the chain cover for a slide fastener of the embodiment is used.

Fig. 10 is a perspective view showing a zipper to which the chain cover for a slide fastener of the embodiment is attached.

Fig. 11 is a perspective view showing a fastener element of a slide fastener for attaching a chain cover for a slide fastener of the embodiment.

Fig. 12 is a front view showing another use state of the chain cover for a slide fastener of the embodiment.

Figure 13 is a cross-sectional view showing a chain cover for a slide fastener according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described based on the drawings. 1 to 9 show an embodiment of the present invention, and a chain cover body 10 for a slide fastener of the present embodiment is used for a zipper 12 A zipper chain 13 for use, for example, for joining a covering material such as a carpet or a seat cushion of a seat. The zipper 12 has a chain belt 15 in which a sprocket line 15 including a plurality of sprocket teeth 14 is disposed on one edge portion 16a of the tape member 16 in the longitudinal direction, and the sprocket row 15 of each chain belt is used by the slider 18 When meshing with each other, the sprocket teeth 14 are connected in a chain shape in a row. The fastener chain cover 10 is attached to the end portion 16b of the tape member 16 in the longitudinal direction, and accommodates the two fastener elements 14a and 14b of the end portions of the pair of tape members 16 that are connected in a chain shape to be maintained. The meshing state of the sprocket 14 .

Here, the length (upper and lower) directions described in the present invention are the direction in which the slider 18 slides, and the direction in which the element rows 15 are closed by the slider 18 is set upward, and the direction in which the pull-out is set is set. For the next, in Figure 1, the paper is in the up and down direction. Further, the width (left and right) direction described in the present invention is a direction intersecting the longitudinal direction and along the main surface (front or back) of the fastener tape including the pair of tape members 16, which is shown in FIG. The left and right sides of the paper. Further, the front-back direction described in the present invention is a direction in which either the longitudinal direction and the width direction intersect, and the front surface 16c side of the tape member 16 is set to the positive direction, and the back surface 16d side is set to the back. The direction is in the front and back directions on the paper in Figure 1. Furthermore, the front and back directions also coincide with the dimensions of the thickness direction of the fastener elements.

The zipper chain cover 10 is integrally molded from a synthetic resin or rubber having moderate elasticity. As shown in FIGS. 1 to 5, the chain cover body 10 for a slide fastener is provided with a rectangular plate-like base end portion 20 which is attached to the end portion 16b of the tape member 16. The base end portion 20 is formed to have a larger cross-sectional shape than the sprocket 14a in parallel with the width direction of the tape member 16. A positive engagement portion 22 that overlaps the front surface 16c of the tape member 16 is provided at an end portion of the base end portion 20 in the positive direction. The positive engagement portion 22 is formed in a rectangular frame shape along the front surface 16c, and the inner side thereof is formed as a hollow portion 22a.

A back engaging portion 26 that overlaps the back surface 16d of the tape member 16 is provided at an end portion of the base end portion 20 in the back direction. The back engaging portion 26 is formed in a rectangular frame shape having substantially the same shape as the positive engaging portion 22, and the inner side thereof is formed as a hollow portion 26a. Moreover, at the positive engagement portion 22 and the back The accommodating portion 24 is formed between the engaging portions 26, and the accommodating portion 24 accommodates one sprocket 14a attached to one of the tape members 16, and is disposed adjacent to the sprocket 14a and attached to the other tape member 16. Another sprocket 14b. Further, the space of the accommodating portion 24 communicates with the hollow portion 22a of the positive engagement portion 22 and the hollow portion 26a of the back engagement portion 26.

The accommodating portion 24 is formed such that the width dimension is slightly larger than the width dimension of the sprocket 14 and the upper and lower dimensions are slightly larger than the upper and lower dimensions when the two sprocket teeth 14 are arranged side by side.

The positive engagement portion 22 has a pair of right side wall portions 23 that extend toward the back engagement portion 26 and face each other, and the back engagement portion 26 includes a pair of opposite side wall portions 25 that extend toward the positive engagement portion 22 side and face each other. . Further, the pair of front side wall portions 23 respectively extend from the side edges in the width direction of the positive engagement portion, and the pair of rear side wall portions 26 respectively extend from the side edges in the width direction of the back engagement portion. Further, between the front side wall portion 23 of the positive engaging portion 22 and the back side wall portion 25 of the back engaging portion 26, a slit 28 having a width slightly larger than the thickness of the tape member 16 is provided. The portion of the positive engaging portion 22 and the back engaging portion 26 opposite to the proximal end portion 20, that is, between the positive engaging portion 22 and the upper end portion of the back engaging portion 26, communicates with each slit 28 An insertion port 30 as an opening of a rectangular shape through which the sprocket 14 is inserted is provided.

The insertion opening 30 is formed smaller than the sprocket 14 , and a positive side step 32 is formed at an edge of the positive engagement portion 22 of the insertion opening 30 , and the positive side step 32 extends inward to allow the insertion opening 30 It is smaller than the size of the element teeth 14. The corner portion of the insertion opening 30 of the insertion opening 30 and the corner portion of the insertion opening 30 are provided with a back side step 33 which extends inwardly so that the insertion opening 30 is chained. The teeth 14 are narrow in size. The positive side step portion 32 includes a first wall portion 32a extending in the width direction from the upper end portion of each of the front side wall portions 23, and a second wall portion 32b extending in the back direction from the upper end portion of the positive engaging portion 22. The first wall portion 32a has a shape in which the front ends of the front side wall portions 23 are bent toward each other in such a manner that the distance between the pair of positive side wall portions 23 is narrowed. Further, the second wall portion 32b has a shape in which the upper frame of the positive engagement portion 22 extends toward the back engagement portion 26. Further, the front and back dimensions of the first wall portion 32a are substantially the same as the front and back dimensions of the front side wall portion 23. On the other hand, the back side step portion 33 includes a third wall portion 33a extending in the width direction from the upper end portion of each of the back side wall portions 25, and The fourth wall portion 33b extending in the forward direction from the upper end portion of the back engaging portion 26 is formed. The third wall portion 33a has a shape in which the front ends of the back side wall portions 25 are curved toward each other in such a manner that the distance between the pair of back side wall portions 25 is narrowed. Further, the fourth wall portion 33b has a shape in which the upper frame of the back engaging portion 26 extends toward the positive engaging portion 22. Further, the corner portion of the third wall portion 33a has a cut shape, and the front end dimension of the proximal end side of the third wall portion 33a is substantially the same as the front back dimension of the back side wall portion 25, and the front end side of the third wall portion 33a is the same. The front back size is narrower than the front back dimension of the back side wall portion 25. As shown in FIG. 5, a chamfered portion 31 is formed on the upper surface side of the peripheral walls constituting the insertion opening 30, that is, the first to fourth wall portions 32a, 32b, 33a, and 33b. Since the positive engagement portion 22 and the back engagement portion 26 are formed in a frame shape, the storage portion 24 is opened. Further, the dimension of the back engaging portion 26 in the thickness direction is formed to be slightly smaller than the dimension of the positive engaging portion 22 in the thickness direction.

Further, as described above, the insertion opening 30 is formed smaller than the sprocket 14 and, in more detail, in the present embodiment, at least the interval in the width direction of the insertion opening 30 is formed to be larger than that of the sprocket. The largest dimension in the width direction is narrow. In other words, the interval between the pair of first wall portions is formed to be narrower than the largest dimension in the width direction of the fastener elements 14. Further, in the present embodiment, the interval between the front and back directions of the insertion opening 30 is formed to be narrower than the maximum dimension of the front and back directions of the fastener elements. In other words, the interval between the second wall portion 32b and the fourth wall portion 33b is formed to be narrower than the largest dimension of the sprocket 14 in the front-back direction.

Here, the sprocket 14 of the zipper 12 to which the zipper chain cover 10 is attached will be described with reference to FIGS. 10 and 11 . The fastener element 14 is formed on the edge portion 16a of the tape member 16 by, for example, synthetic resin such as polyamine, polyacetal, polypropylene, or polybutylene terephthalate. The sprocket 14 is provided with a design portion 34 disposed on the front surface 16c of the tape member 16, and an engaging portion 36 disposed on the back surface 16d of the tape member 16 and meshing with the adjacent sprocket 14. A tape fixing groove 38 is formed between the design portion 34 and the meshing portion 36 when the edge portion 16a of the tape member 16 is injection molded. The design portion 34 and the meshing portion 36 are opposite to the tape fixing groove 38, and a substantially U-shaped portion of the edge portion 16a of the tape member 16 on the storage side is formed along the longitudinal direction of the tape member 16. The tape storage groove 40.

The design portion 34 is formed in a substantially elliptical shape that is thinner in the width direction orthogonal to the longitudinal direction of the tape member 16 as viewed from the front surface 16c of the tape member 16, and is in the longitudinal direction of the tape member 16 and A shape that is symmetrical in the width direction orthogonal to the longitudinal direction. The cross-sectional shape of the tape member 16 of the design portion 34 in the thickness direction is formed into a substantially hemispherical shape which is curved as a whole. Thereby, when the pair of left and right sprocket teeth 14 are engaged, the design portions 34 having the same shape of the plurality of sprocket teeth 14 are arranged in a row along the edge portion 16a of the tape member 16 in a row.

The engaging portion 36 is formed in a flat plate shape thinner than the protruding portion of the design portion 34. The engaging portion 36 is provided with a base portion 36a as a tape fixing groove 38 side attached to the edge portion 16a of the tape member 16, and an engaging head portion 36b extending from the base portion 36a toward the object side tape member 16 and formed The tape receiving groove 40; and the neck portion 36c are formed between the base portion 36a and the engaging head portion 36b and have a narrow width. The engaging head portion 36b has a shape in which the substantially elliptical shape of the design portion 34 is divided into half, and the engaging head portion 36b side of the neck portion 36c serves as a pair of engaging portions 42, and the engaging portion 42 is opposed to the tape receiving groove 40. The plane in which the insertion direction is formed substantially in parallel. A portion of the front end portion of the engaging portion 42 and a portion of the engaging head portion 36b that is continuous therewith protrudes slightly from the peripheral portion of the design portion 34.

Next, a method of meshing the zipper 12 will be described based on Fig. 1 . The zipper 12 has a space corresponding to each of the sprocket teeth 14 and is disposed at a plurality of intervals in the edge portion 16a of the pair of tape members 16, and the pair of tape members 16 and the sprocket teeth 14 are alternately opposed to each other. Each of the fastener elements 14 is attached to the other tape member 16 by the tape storage groove 40, and the engaging portion 42 is located on the opposite side. Further, when the pair of tape members 16 are inclined toward each other by the slider 18, the edge portion 16a of the other tape member 16 is fitted into the tape receiving groove 40, and the chain of the other tape member 16 is attached. The engaging portions 42 of the teeth 14 are located on the engaging portion 42 so as to overlap face to face. Further, the slider 18 is brought into parallel with each other by the pair of tape members 16, and the engaging portions 42 of the fastener elements 14 abut against each other to be in an engaged state. In the engaged state, when viewed from the front surface 16c of the tape member 16, the design portion 34 of the fastener element 14 has a slight gap and is connected in a chain shape. The continuous design portions 34 are spaced apart from each other by a slight gap, and the design portion 34 is formed into a substantially elliptical shape. Therefore, even if the zipper 12 is bent in either direction, the adjacent design portions 34 can be freely bent without interfering with each other, and the flexibility is high. The engaging portion 36 is formed flat, and the engaging head portion 36b is formed in a substantially elliptical shape similar to the design portion 34, so that it does not interfere with each other and is harmoniously curved.

In the state in which the sprocket 12 is engaged with each of the fastener elements 14, the center line in the longitudinal direction of the element row 15 on the side of one tape member 16 coincides with the center line in the longitudinal direction of the element row 15 on the side of the other tape member 16. That is, when the design portion 34 is in the shape of a bilaterally symmetrical shape as in the present embodiment, when the sprocket 14 of the zipper 12 is engaged, the left end portion of the design portion 34 of one tape member 16 and the other tape are Since the right end portions of the design portions 34 of the members 16 are at the same position in the width direction, the element rows 15 are arranged in a single line shape.

Next, a method of using the slide fastener chain body 10 of the present embodiment will be described with reference to Figs. 8 and 9 . The positive engaging portion 22 of the zipper chain cover 10 is held as the front surface 16c of the tape member 16, and the end portion 16b of the tape member 16 of the zipper 12 in a self-engaging state presses the end portion of the sprocket 14a. The tape member 16 is inserted into the slit 28 while being inserted into the opening 30. At this time, since the insertion opening 30 of the zipper chain cover 10 is formed with the chamfered portion 31 which is rounded so as to bulge outward, the chamfered portion 31 is pressed by the sprocket 14a to act to open to the outside. The elastic deformation is caused to widen the slit 28, so that the fastener element 14a passes through the insertion opening 30. After the sprocket 14a passes, the next sprocket 14b is similarly passed, and when the elastic deformation is restored, the insertion opening 30 is restored, and the sprocket 14b can no longer pass, and the sprocket 14a, 14b is accommodated in the accommodating portion 24.

The zipper chain cover 10 is repeatedly elastically deformed twice, and the two sprocket teeth 14a and 14b located at the end portion 16b of the tape member 16 are housed in the accommodating portion 24, as shown in Figs. 6, 7, and 9. carry out. Since the two sprocket teeth 14a and 14b are also connected to each other and locked to the inner side wall of the accommodating portion 24, they are not separated from each other. Further, the size of the insertion opening 30 is formed smaller than that of the fastener elements 14a and 14b. Therefore, the fastener elements 10a and 14b do not come out of the accommodating portion 24 as long as the fastener zipper body 10 does not undergo elastic deformation. Thus, since the end portion 16b of the tape member 16 is not divided Therefore, the zipper chain 13 of the zipper 12 is maintained in mesh with the entire length of the tape member 16. Therefore, as shown in FIG. 2, after the element rows 15 are engaged with each other by using the slider 18, the slider 18 is removed from the zipper 12, and the zipper chain cover 10 is attached to the both end portions 16b of the zipper chain 13, Thereby, only the slider 18 can be removed from the fastener chain 13. Such a zipper chain 13 does not become an obstacle when used, for example, in a place where the zipper 12 is not pulled or closed a plurality of times, such as a skin material of a carpet or a sheet material. Further, the unloaded slider 18 can be used for engagement of another zipper chain 13.

Further, as shown in FIG. 12, the sliders 18 may be moved from the both end portions 16b of the zipper 12 to bring the zipper 12 into an engaged state, and the pair of sliders 18 may be opposed to each other at any position of the tape member 16. The zipper chain cover 10 is attached to both end portions 16b, thereby preventing separation of the sprocket 14 of the zipper 12.

The chain cover body 10 for a slide fastener according to the present embodiment can be applied to a fastener chain 13 that is connected to a chain shape when the fastener elements 14 are engaged, and can maintain the meshing state of the fastener elements 14, and has a simple structure and can be easily attached and detached. Since the frame-shaped positive engaging portion 22 and the back engaging portion 26 are pressed against one of the pair of sprocket teeth 14a, 14b from both sides, the engaging portions 42 of the sprocket 14a, 14b can be surely stuck to each other. This prevents the separation of the zipper chain 13 of the zipper 12. Since the chamfered portion 31 is formed in the insertion opening 30 of the zipper chain cover 10, the force which is pressed by the sprocket 14a and 14b to open to the outside easily causes elastic deformation to widen the slit 28, Thereby, the fastener elements 14a, 14b can pass. After the sprocket teeth 14a and 14b pass, the elastic deformation is restored, and the fastener elements 14a and 14b can no longer pass, so that the fastener elements 14a and 14b can be surely entered and locked in the accommodating portion 24 with a simple operation.

Further, in the case where the zipper chain 13 of the zipper 12 is used in the mat or the seat cover, in most cases, the slider 18 is unloaded and the zipper chain cover 10 is attached after the fastening is not required to be pulled or closed again. This reusable slider 18 can reduce costs. The positive engagement portion 22 and the back engagement portion 26 have a rectangular frame, and the storage portion 24 is opened by the hollow portions 22a and 26a. Therefore, it is not necessary to provide a thickness covering the wall surface of the fastener elements 14a and 14b, and the positive engagement can be achieved. Department 22 and back card The hinge portion 26 is thin and small.

Further, the chain cover of the present invention is not limited to the above embodiment, and the shape, the number, and the like of each member can be appropriately changed. For example, as shown in FIG. 13, the interval between the front and back directions of the insertion opening 30 may be formed to be narrower than the maximum dimension of the front and back directions of the fastener elements. In other words, in the modification shown in FIG. 13, the first wall portion 32a and the third wall portion 33a described in FIG. 6 are not present, and the second wall portion 32b and the fourth wall portion 33b are from the positive engagement portion 22 and The back engaging portions 26 extend in opposite directions, and the interval between the second wall portion 32b and the fourth wall portion 33b is formed to be narrower than the maximum dimension of the sprocket 14 in the front-back direction. The same effect as the above embodiment can be obtained by the chain cover 10 for a slide fastener of this shape.

Further, two chain teeth are housed in the housing portion of the chain cover, but three or more of them may be housed. The positive engagement portion and the back engagement portion are formed by a rectangular frame, but may be an elliptical shape or the like, or a structure in which a wall surface or the like is provided inside the frame to hide the stored fastener elements. The shape of the insertion opening can be freely changed, as long as the fastener element is easily passed by the elastic deformation of the chain cover, and the shape of the fastener element can be reliably passed when the elastic deformation is restored. The material of the chain cover can be selected from a synthetic resin, a metal, a rubber, or the like as long as it has moderate elasticity and durability.

10‧‧‧Zipper chain cover

12‧‧‧ zipper

13‧‧‧ zipper chain

14‧‧‧ sprocket

14a‧‧‧ sprocket

14b‧‧‧ sprocket

15‧‧‧Chain row

16‧‧‧ cloth tape components

16a‧‧‧Edge

16b‧‧‧End

16c‧‧‧ positive

18‧‧‧Sliding parts

20‧‧‧ base end

22‧‧‧正卡部部

24‧‧‧ Storage Department

26‧‧‧ Back Engagement Department

28‧‧‧Slit

30‧‧‧Inlet

31‧‧‧Chamfering

34‧‧‧Design Department

42‧‧‧Clock Department

Claims (5)

A chain cover for a zipper, characterized in that it is attached to a zipper chain (13) and prevents the element rows (15) from separating from each other by a zipper chain cover (10), the zipper chain (13) comprising: a pair of left and right tape members (16); and a pair of the element rows (15), wherein the tape members (16) are alternately arranged along the longitudinal direction of the tape member (16), and the tape members (16) are disposed opposite to each other a plurality of sprocket teeth (14) of the side edge portion (16a); and the zipper chain cover body is provided with a plate-shaped base end portion (20) which is opposite to the above-mentioned tape member of the zipper chain (13) 16) the ends are oppositely mounted; a positive engaging portion (22) extending from the base end portion (20) and overlapping the front surface (16c) of the tape member (16); and a back engaging portion ( 26) extending from the base end portion (20) and overlapping the back surface (16d) of the tape member (16); and the positive engaging portion (22) and the back engaging portion (26) Including: a pair of slits (28) which are wider than the thickness of the tape member (16) and which are narrower than the thickness of the fastener element (14) in the thickness direction of the tape member (16); And a storage portion (24) formed on the upper portion Between the pair of slits (28), at least the end sprocket (14a) disposed at the end of the tape and the end of the sprocket (14a) And the adjacent sprocket (14b); and the positive engaging portion (22) and the back engaging portion (26) are disposed opposite to the base end portion (20) as the sprocket (14) is inserted The insertion opening (30) of the opening, the insertion opening (30) is in communication with the slit (28) and the accommodating portion (24), and is formed smaller than the sprocket (14); and the positive card In the joint portion (22) and the back engagement portion (26), at least the positive engagement portion (22) includes a hollow portion (22a) including a space forming a portion of the storage portion (24). ; The positive engagement portion (22) includes a pair of right side wall portions (23) extending toward the back engagement portion (26), and the back engagement portion (26) includes the positive engagement portion (22) side Extending one of the pair of back side wall portions (25), and the slit (28) is formed between the front side wall portion (23) and the back side wall portion (25); at the positive engaging portion (22) The edge portion of the insertion opening (30) has a positive side step portion (32) extending inwardly such that the insertion opening (30) is narrower than the size of the fastener element (14). The hollow portion (22a) is constituted by the base end portion (20), the pair of positive side wall portions (23), and the positive side step portion (32), and is disposed along the tape member (16). a frame shape of the front surface (16c); the positive engagement portion (22) and the back engagement portion (26) are elastically deformable in a direction separating from each other, and the elastic element is deformed to enable the fastener element (14). ) The size through which the above-mentioned insertion port (30) passes. The zipper chain cover of claim 1, wherein the edge portion of the insertion opening (30) of the back engaging portion (26) is provided with a back side step portion (33), and the back side step portion (32b) is inwardly Extending so that the insertion opening (30) is narrower than the size of the fastener element (14). The chain cover for a zipper according to claim 1 or 2, wherein the positive engaging portion (22) and the back engaging portion (26) are formed in a rectangular frame shape, and the back engaging portion (26) includes a hollow portion ( 26a), the hollow portion (26a) includes a space forming a portion of the accommodating portion (24), and the accommodating portion (24) is applied to the tape member (16) by the hollow portion (22a, 26a) The front side (16c) and the back side (16d) are open. A zipper chain (13) for a zipper chain cover (10) according to any one of the above claims 1 to 3, characterized in that the sprocket (14) comprises: a design portion (34) When it is engaged, it is disposed independently in the longitudinal direction of the tape member (16), and is disposed in the tape member (16). a positive side; and an engaging portion (36) disposed on a back side of the tape member (16) and engaged with the adjacent fastener element (14); at the front end of the element (14), and A tape storage groove (40) is formed between the design portion (34) and the meshing portion (36) at the edge portion (16a) of the tape member (16) on the storage side at the time of meshing. The zipper chain of claim 4, wherein the sprocket row (15) is engaged, the center line of the longitudinal direction of the element row (15) of one tape member (16) and the other tape member (16) The center line of the length of the side chain rows (15) is the same.