CN102740720B - Slide fastener and slide fastener article coated - Google Patents

Abstract

In the zipper (10) of the present invention, a front stopper (11) is installed on one of the left and right zipper stringers (1), and the front stopper (11) has: a shoulder-side end that abuts on the slider (20) The first front piece (12, 12'); the second piece arranged between the first front piece (12, 12') and the chain element row (3) to maintain the stopped state of the slider (20) Front yards (13, 13'). In addition, the maximum dimension in the tape width direction from the sliding contact edge (13c) to the opposite side edge of the second front fastener (13, 13') is set to be larger than that of the slider (20). The insertion width between the guide post (25) and the flange (26) is large, and at least a part of the second front fastener (13, 13') is elastically deformable so as to shrink in the belt width direction. Thereby, the slider (20) can be stopped by the 1st front stopper (12, 12'), and the stopped state of the slider (20) can be maintained by the 2nd front stopper (13, 13').

Description

Zipper and zipper covered products

technical field

The present invention relates to a slide fastener having a top stop arranged on one end side of an element row, and particularly to a slide fastener capable of stopping and holding a slider slidable along the element row by the top stop.

Background technique

In Japanese Patent Application Publication No. 4-84313 (Patent Document 1), the following training pants (training trousers) are disclosed: in order to put on the training pants and take them off immediately while wearing competitive shoes, spikes, etc., Zippers are attached to the left and right legs so that they can be opened into a front body and a back body.

Regarding the training pants disclosed in this patent document 1, as shown in FIG. An openable and closable slide fastener 61 is attached inside. Therefore, the training pants 60 can be opened into the front body part 63 and the back body part 64 from the form of trousers by sliding the slider 62 of each slide fastener 60 and separating the meshed element row.

In addition, the front body part 63 and the back body part 64 of the state opened in this way are connected by sliding the slider 62 of the slide fastener 61 so that the element rows corresponding to each other are engaged with each other. The training pants 60 return to the pants configuration shown in FIG. 19 .

The training pants 60 of Patent Document 1 having such a structure can be put on and taken off in the same manner as conventional normal training pants 60 in the closed state of the zippers 61 on both the left and right sides. In addition, the training pants 60 can be easily taken off even when the training pants 60 are worn by opening the front body part 63 and the back body part 64 by the zipper 61 .

However, zippers have been used in products in various fields, and zippers themselves have been improved according to products to be used to have various functions. For example, Japanese Patent Publication No. 41-9266 (Patent Document 2) discloses a slide fastener in which a front stopper is installed on the upper end side of the element row, and the slider is slid to disengage from the front stopper side along the element row. , the left and right element rows can be separated from the top side without depending on the slide of the slider.

The slide fastener described in this patent document 2 is generally referred to as a top-opening slide fastener. Even if the slider is not slid like a conventional slide fastener, the left and right fastener stringers are pulled in a direction separating from each other. The chain element row can be separated to open the zipper. Therefore, the top-opening slide fastener is used, for example, in products such as life jackets that require quick response in an emergency.

And this patent document 2 describes the invention related to the top stopper used for a top opening slide fastener. The front stopper described in this patent document 2 has, as shown in FIG. 20 , a first front stopper portion 74 fixed to the left fastener stringer 73 and a fastener stringer fixed to the right side so as to face each other. The 2nd front code part 75 on 73.

The first top part 74 has a through hole 76 penetrating in the belt front and back direction, and is configured to be elastically deformable by being pressed by the second top part 75 . The second front stopper 75 has a protrusion 77 and a raised part 78 arranged on the side wall surface facing the counterpart fastener tape, and is configured to be able to press the first front stopper 74 by the raised part 78 .

In the slide fastener 71 having such a front stop, the first and second front stop parts 74 and 75 are respectively inserted from the shoulder opening of the slider 72 by sliding the slider 72 in the engaging direction (upward direction in the figure) of the element row. Furthermore, the first front stop portion 74 and the second front stop portion 75 are pressed against the left and right flanges 72a of the slider 72 so that the slider 72 can be stopped at a predetermined position.

Next, by strongly pulling up the slider 72 upward from the stopped state of the slider 72 shown in FIG. 20 , the first and second front stop portions 74 , 75 are pressed and approach each other. At this time, the first front stopper 74 is elastically deformed by being pressed by the raised part 78 of the second front stopper 75 from the side wall surface, so that the first and second front stoppers 74 and 75 can pass through the left and right protrusions of the slider 72 . Between the edge 72a and from the rear opening of the slider 72.

As a result, the slider 72 can move over the first and second front stoppers 74 and 75 and move to the upper side of the first and second front stoppers 74 and 75 , and move the left fastener element row from the slider 72 . The chain tooth guide channel is pulled out. Therefore, by pulling the left and right fastener stringers 73 in the direction to separate from each other afterwards, the left and right element rows can be separated from the upper side, and the slide fastener 70 can be quickly and easily opened without depending on the slide of the slider 72 . .

On the other hand, Japanese Unexamined Patent Publication No. 6-14806 (Patent Document 3) discloses a technology for a slide fastener used in car seats, etc., in which the slider can be moved from the slide fastener after the left and right element rows are meshed. Long chain pull out.

In the slide fastener 81 described in this patent document 3, as shown in FIG. 21, the front stopper 82 is attached to the one end side of the element row on either side, and the back stopper 83 is attached to the other end side. The top stop 82 has a first top stop 84 fixed to the left fastener tape and having an engaging recess, and a second top stop 85 fixed to the right fastener tape and having an engaging protrusion.

In addition, this top stop 82 is set so that when the engaging protrusion of the second top stop 85 is fitted into the engagement recess of the first top stop 84, the first and second top stop 84, 85 are engaged with each other. , The thickness dimension and the width dimension of the whole top size 82 are the same thickness dimension and width dimension as the left and right fastener elements in the engaged state. Thereby, when locking the 1st and 2nd front stopper part 84,85, since the slider which is not shown in figure can pass the front stopper 82 easily, it can pull out a slider from a slide fastener chain.

Moreover, in the slide fastener 81 of patent document 3, the belt upper end part 86 of the fastener tape on which the top stop 82 is arrange|positioned, the belt part of the left and right sides is cut off, and the mode which protrudes with the belt part in the center of the top stop 82 is formed as mountainous. By protruding the central belt part having the top stopper 82 in this way, when the slide fastener 81 (zipper chain) in the state after the slider is pulled out is subjected to a lateral pull, the lateral pull force can hardly act on the top stopper 82, so the The locked state of the first and second top parts 84, 85 is stably maintained.

Patent Document 1: Japanese Patent Application Publication No. 4-84313

Patent Document 2: Japanese Patent Publication No. 41-9266

Patent Document 3: Japanese Patent Application Laid-Open No. 6-14806

In the left and right legs of the training pants 60 described in Patent Document 1, as mentioned above, a zipper 61 is installed in the range from the upper end on the waist side to the lower end on the trouser leg side, and the slider 62 of the zipper 61 is slid to By separating into two fastener stringers, the training pants 60 can be divided into the front body part 63 and the back body part 64 .

In particular, in the training pants 60 of Patent Document 1, in order to facilitate the operation of the zipper 61, the insertion-separation part of the zipper 61 is arranged at the lower end on the leg side, and the top 82 is arranged on the upper end on the waist side. Therefore, when the element row of the slide fastener 61 is meshed and the form of pants is maintained, the slider 62 of the slide fastener 61 is arrange|positioned at the waist part used as the upper end of an element row.

Generally speaking, training pants are mostly made of stretchable fabric. Additionally, when the training pants are put on or taken off, the waist portion of the training pants is stretched. Therefore, when the slider 62 is arranged at the waist when it is in the form of trousers like the training pants 60 of Patent Document 1, tension in the waist direction will be applied to the waist every time the training pants 60 are put on and taken off, so the slider 62 is arranged. The upper end portion of the slide fastener 61 is repeatedly applied with a large transverse pulling force.

At this time, if a so-called free slider 62 that does not have a stop claw described later is used on the zipper 61, since the front end of the zipper 61 receives a lateral pull force when putting on and taking off the training pants 60, the left and right fastener elements The row acts on the slider 62 in a direction (downward) that separates the element row, and the slider 62 tends to slide against the user's intention. For this reason, there exists a problem that the element row of the front-end|tip part left and right of the slide fastener 61 isolate|separates, and cannot maintain the trousers form.

In addition, when the slider 62 is slid by receiving the lateral pull force in this way, the slider 62 may slide unreasonably while keeping the posture inclined with respect to the element row. At this time, the back mouth of the slider 62 collides strongly with the fastener elements of the element row, and at the same time the slider 62 is forcibly moved downward, so that the fastener element may be cut off by the back mouth of the slider 62. question.

On the other hand, as a slider for a slide fastener, in addition to the above-mentioned free slider 62, a slider with an automatic stop mechanism has been frequently used: it is equipped with a stop claw that can enter and withdraw from the element guide passage, thereby The slider can be stopped and held at a desired position of the element row.

It is conceivable that the slider with an automatic stop mechanism is used in the training pants 60 of Patent Document 1 to thereby prevent the slider from forcibly sliding downward as described above. However, when putting on and taking off the training pants 60, the lateral pulling force acting on the front end of the slide fastener 61 is large, so it is difficult to stably maintain the stop state of the slider only by locking the stop claws on the element rows as in the past.

In particular, when a slider with an automatic stop mechanism is used, the slider can be stopped at a desired position of the element row without sliding the slider to the position where the upper end of the top stop is arranged. However, for example, when putting on and taking off the training pants without moving the slider to the upper end position where the front size is configured, the slider becomes easy to slide because the horizontal pulling force is concentrated on the position where the slider stops, so it is different from the above-mentioned free pull. Similarly, in the case of the head 62, there arises a problem that the shape of the trousers cannot be maintained.

In addition, when using a slider with an automatic stop mechanism, the slider slides unreasonably in the direction of separation of the element rows when the stop claw protrudes into the element guide passage, so the fastener elements are pulled. The back mouth of the head is chipped off, and the fastener elements are also chipped off by the stop claws, and there is also a problem that the damage of the fastener elements becomes larger.

In addition, in order to make it difficult for lateral pulling force to act on the front end of the slide fastener 61 when putting on and taking off the training pants 60, it is also conceivable, for example, as described in Patent Document 3, to separate the left and right sides of the tape ends of the fastener tape. The band end is cut off to form a mountain shape.

However, even if the tape end of the zipper tape is formed into a mountain shape, it is impossible to prevent the lateral pulling force from acting on the front end of the zipper when putting on and taking off the training pants 60, so the fact that the slider 62 slides against the user's will cannot be eliminated. question. In addition, in this case, the problem that the fastener tape itself is easily broken from the cut-out portion of the upper end of the tape, and the problem that the waist portion of the training pants 60 is uneven and the appearance quality is degraded newly arises.

Contents of the invention

The present invention has been made in view of the above-mentioned conventional problems, and its specific purpose is to provide a slider that can prevent the slider from freely sliding in the direction of separating the element row even if a lateral pull is applied to the slider at the top stop position. , and stably maintain the meshing state of the left and right fastener element rows, and the zipper covered product sewn with the zipper, it is also provided that even if the slider is subjected to a lateral pull in the state where the slider is stopped at the position of the front yard, it can be used. It is difficult for the lateral pulling force to directly act on the zipper covered product at the upper end of the belt disposed on the top size.

In order to achieve the above object, the slide fastener provided by the present invention has, as a basic structure, a pair of left and right fastener stringers formed by installing a chain element row on opposite belt side edges of a pair of slide fastener tapes; a slider for sliding the element row; and a front yard, which is installed on one end side of the element row of the zipper tape and prevents the slider from falling off from the element row, and the slider passes through the guide There is a substantially Y-shaped element guide path connecting the two shoulder openings opened on the front end side and the rear opening opened on the rear end side between the upper and lower wing plates connected by a column. The most important feature of the slide fastener is that The front stopper has: a first front stopper part arranged on one side of the zipper tape and used to abut against the shoulder side end of the slider; between the chain element rows, and is used to abut against the end of the rear mouth side of the guide column to maintain the stop state of the slider, and the slave of the second front fastener and the second The maximum dimension in the belt width direction from the sliding contact edge portion of the sliding contact edge portion of the flange of the slider to the opposite side edge portion facing the counterpart fastener stringer is set to be larger than all the elements in the element guide passage. The insertion width between the guide post and the flange is large, and at least a part of the second front bracket is configured to be elastically deformable so as to contract in the belt width direction.

In the slide fastener according to the present invention, it is preferable that the second front fastener has: a fixing portion fixed to the fastener tape; The extension portion of the rear mouth side end portion of the post has a hole that passes through the front and back of the belt, and is elastically deformable.

In this case, it is preferable that the extension part has: a first side wall surface disposed opposite to the first front stopper; and a third side wall surface, formed continuously from the second side wall surface, and the dimension in the belt direction from the sliding contact edge to the opposite side edge is directed toward the fastener element Columns are gradually reduced.

In addition, in the slide fastener of the present invention, it is preferable that the element row has at least one weak portion that partially reduces the meshing force of the left and right element rows, and that the other fastener tape has a On one end side of the element row, at least one slider sliding contact that is in sliding contact with the flange of the slider is arranged in such a manner as to face the top stopper, and the belt front and back of the slider sliding contact The thickness dimension in the direction is set to be larger than the groove interval with the through slot formed between the flanges of the slider, and larger than the inner surface of the upper and lower wings of the slider. The interval between them is small, and the width dimension of the width direction of the slider sliding contact member in the belt width direction is set to be such a size that the slider can pass through the slider when it is held on the second front frame. between the flange and the second front piece.

In this case, it is preferable that the slider sliding contact has two or more sliding contact portions separately fixed to the fastener tape.

Furthermore, it is preferable that the first dummy element is held by the slider on the second front stop between the element row of the one fastener tape and the second top stop. One part is arranged so as to close a part of the rear mouth of the slider, and on the other side of the fastener tape, the second dummy element is connected to the second front piece and the first dummy element. The first and second dummy fastener elements respectively have: a main body fixed on the zipper tape; and heads extending from the main body to the outside of the tape and capable of sliding contact with each other. part, the second dummy element is configured so that, when the left and right element rows start to separate from the fragile part, the first dummy element can be pressed from the slider's element. The guide pathway exits through the posterior port.

Moreover, according to this invention, there is provided the slide fastener covered product which sewed the said slide fastener which has the said structure.

In the covered slide fastener product of the present invention, it is preferable that the sewing line formed by sewing the slide fastener on the covered slide fastener product has a first sewing portion arranged in parallel with the element row, so that One end of the first sewn portion is disposed closer to the other end side of the element row than the guide post of the slider held by the top top.

In this case, it is preferable that the sewing thread further has a second sewing part formed continuously from one end of the first sewing part, and the second sewing part is opposite to the first sewing part. The portion is arranged obliquely at a predetermined angle. Furthermore, it is particularly preferable that the second sewn portion is inclined at an angle of not less than 40° and not more than 90° in a direction opposite to the element row with respect to an extension line of the first sewn portion.

In addition, the slide fastener covered product provided by the present invention has, as a basic structure, a slide fastener having a pair of left and right fastener elements in which element rows are attached to opposite tape side edge portions of a pair of fastener tapes. a fastener tape; a slider capable of sliding along the element row; and a top stopper mounted on one end side of the element row of the zipper tape. The main feature of the zipper covered product is that the The sewing line in which the slide fastener is sewn onto the slide fastener covered product has a first sewing portion arranged parallel to the element row, and one end of the first sewing portion abuts against the The position of the guide post of the said slider of a top stop is arrange|positioned rather than the position of the other end side of the said element row.

In this case, it is preferable that the sewing thread further has a second sewing part formed continuously from one end of the first sewing part, and the second sewing part is opposite to the first sewing part. The portion is arranged obliquely at a predetermined angle.

The effect of the invention

In the slide fastener of the present invention, the front stopper installed on one end side of the fastener element row of one slide fastener tape has: the first front stopper that abuts against the shoulder opening side end of the slider; Between the element rows and in contact with the second front end of the guide post of the slider on the rear mouth side. In addition, the maximum dimension of the second front fastener in the belt width direction from the flange sliding contact edge to the opposite side edge is set to be smaller than the penetration between the guide post and the flange in the element guide path of the slider. Wide. Furthermore, at least a part of the second top stop is configured to be elastically deformable so as to contract in the belt width direction.

Here, the shoulder-side end of the slider refers to the shoulder-side end of at least one of the guide column, the upper blade, the lower blade, and the flange of the slider. The flange sliding contact edge portion of the second top fastener is the portion of the second top fastener that slides into contact with the flange of the slider when the second top fastener enters the element guide path from the shoulder of the slider. The side edge portion (side portion), for example, has a fixing portion and an extension portion as described later in the second front mounting member, and the side edge portion on the inner side of the fixing portion becomes a flange slide of the second front mounting member. contact edge.

In addition, the so-called opposite side edge of the second top piece is the end edge (side portion) of the second top piece on the side opposite to the other fastener stringer, and the second top piece has a fixing portion and an extension portion. In the case of the extended part, the side edge part with the outer side becomes the opposite side edge part of the 2nd top piece. In addition, the insertion width between the guide post of the slider and the flange means the shortest linear distance when connecting the side wall of the guide post to the inner wall surface of the flange with a straight line.

Because the front stopper in the slide fastener of the present invention has the first front stopper part and the second front stopper part arranged on one side of the fastener stringer as mentioned above, when the slider is slid to the top stopper position, it is possible to The slider is stopped by bringing the first front stopper into contact with the shoulder end of the slider.

Moreover, when the slider slides to the position which abuts on the 1st front fastener, the 2nd top fastener enters into the element guide path from the shoulder of this slider. At this time, due to the maximum dimension of the belt width direction from the sliding contact edge of the flange to the opposite side edge of the second front fastener, the insertion width between the guide post and the flange in the element guide passage of the slider Therefore, the second front stopper passes between the guide post of the slider and the flange while contracting at least a part in the belt width direction by elastic deformation.

And, when the first front stopper abuts against the shoulder end of the slider as described above or immediately before the abutment, the elastically deformed part of the second front stopper is restored to elasticity by the guide post, and the second front stopper The piece abuts against the end of the rear mouth side of the guide column of the slider. Thereby, the slider which came into contact with the 1st top top body and stopped can be reliably supported by the 2nd top top body, and the stop state of a slider can be maintained stably.

In this way, in the slide fastener of the present invention, by utilizing the elastic deformation of the second front stopper, the second front stopper, which has a size in the belt direction larger than the insertion width between the guide post of the slider and the flange, can abut against the second front stopper. The stop state of the slider is maintained at the end of the rear mouth side of the guide post. Therefore, the slide fastener according to the present invention can stop sliding of the slider at a predetermined position and hold the slider only by the single fastener stringer on which the top stop is arranged.

Moreover, in the slide fastener of the present invention, the second front stopper is in contact with the rear mouth side end of the guide post of the slider due to recovery of elasticity, so the second front stopper is in contact with the rear mouth side end of the guide post. It is possible to change the operation feeling of the slider and generate a small touch sound at an instant.

Thereby, the user of the slide fastener can feel that the second front stopper is in contact with the rear opening side end portion of the guide post, and can confirm that the stopped state of the slider is held by the second front stopper. As a result, the user can consciously and habitually perform the operation of sliding the slider to the stop position where it abuts against the first front stopper, so it is possible to greatly reduce the risk of the user not sliding the slider until it abuts against the first front stopper. 1 Defective situation caused by the former size.

In the slide fastener according to the present invention, the second front stopper has: a fixing portion fixed to the fastener tape; and an extension extending from the fixing portion to the outside of the tape and abutting against the rear opening side end of the guide post, The extending portion has a hole penetrating in the front and back direction of the belt. As a result, the second top top piece can be configured to be elastically deformable, so when the slider is slid to abut against the first top top piece, the second top top piece can enter the element guide passage from the shoulder of the slider. inside, and smoothly insert between the guide post and the flange while elastically deforming the extension. Furthermore, after the extension part of the second front stopper passes between the guide post and the flange, the extension part recovers its elasticity, so that the extension part can abut against the rear mouth side end of the guide post to stably keep the stop of the slider. state.

In addition, in the above-mentioned patent document 2, an elastically deformable front stopper is described as described above, but the front stopper of this patent document 2 contacts another front stopper arranged oppositely and makes the two front stoppers The code piece pushes against the left and right flanges of the slider to stop the slider. In contrast, making the second front stop of the present invention abut against the end of the rear mouth side of the guide post of the slider to stably maintain the stopped state of the slider is similar to the structure and function of the front stop of Patent Document 2. completely different.

In this case, the extension portion of the present invention is configured to have: a first side wall surface disposed opposite to the first front stopper; a second side wall surface continuously curved from the first side wall surface; The wall surface is formed continuously, and the dimension of the belt width direction from a sliding contact edge part to the said opposing side edge part becomes the 3rd side wall surface which gradually decreases toward the said element row.

As a result, when the second front fastener enters the element guide passage from the shoulder of the slider, the third side wall surface of the extension part is in sliding contact with the guide post of the slider first, so that the inclination along the third side wall surface can be The elastic deformation of the extension part is promoted, and the second front fastener is easily inserted into the element guide passage and inserted between the guide post and the flange.

Afterwards, the portion of the second front stopper with the largest dimension in the belt width direction from the flange sliding contact edge to the opposite side edge passes through the guide post of the slider, and the extension part of the second front stopper returns to elasticity, thereby, The second side wall surface of the extension portion (especially, the second side wall surface close to the first side wall surface) abuts against the rear mouth side end of the guide post to stably maintain the stopped state of the second front stopper.

On the other hand, from the state where the slider is held by the second front piece, the slider is operated to slide mainly in the direction (separation direction) in which the engagement of the element row is released, because the second side of the extension part The wall surface is formed in a curved shape, so that the guide post of the slider can be brought into sliding contact with the curve of the second side wall surface of the extension part, and the second front stopper can enter between the guide post and the flange while promoting the elastic deformation of the extension part. . Thereby, it is possible to release the state in which the slider is held by the second front stopper, and to slide the slider in the separating direction.

In the slide fastener of this invention, an element line has at least one weak part which partially reduces the meshing force of the left and right element lines. On one end side of the element row of the other fastener tape, at least one slider sliding contact is arranged to face the top stopper, and the thickness dimension of the slider sliding contact is set to be smaller than that formed in the slider. The interval between the slots with the slots is large, and the interval between the upper and lower wing plates of the slider is smaller. In addition, the width dimension in the belt width direction of this slider sliding contact is set so that it can pass between the flange of a slider and a 2nd front frame when a slider is hold|maintained by a 2nd frame top.

Since the slider sliding contact piece has the above-mentioned thickness dimension and is disposed opposite to the top stopper on the other side of the fastener tape, when the stopped state of the slider is kept by the second top stopper part, even if the top stopper of the slide fastener The side belt end is subjected to lateral tension, and since the first and second front fasteners and the slider sliding contact are accommodated in the element guide passage of the slider, it is possible to prevent the element row from being separated from the end of the front fastener side. , and maintain the meshing state of the chain element row.

And, in this slide fastener, the element row is separated from the fragile part from the state where the element row is engaged and the slider is held at the top, without sliding the slider, and the slide fastener can be opened easily and quickly. In particular, in this case, the slider sliding contact member disposed on the other fastener stringer can be inserted between the flange of the slider and the second front piece, and can be easily accessed from the rear mouth of the slider. Since it comes out, the left and right fastener stringers can be easily separated.

In addition, when the slider sliding contact is arranged on the other fastener tape, the slider sliding contact has two or more sliding contact parts separately fixed on the fastener tape, so that the safety of the slide fastener can be improved more effectively. Horizontal tensile strength. Moreover, when separating an element row from a weak part, a slider sliding contact can be pulled out more smoothly from the back opening of a slider.

And, in the slide fastener of the present invention, one fastener tape has the first dummy element arranged between the fastener element row and the second front fastener, and the other fastener tape has the first dummy fastener element with the second front fastener and the first dummy fastener. The second dummy elements are arranged so that the elements face each other, and the second dummy elements are configured so that when the left and right rows of the dummy elements start to separate from the weak portion, the first dummy elements can be moved from the The element guide passage of the slider is protruded through the rear opening.

Due to the presence of such first and second dummy elements, even if the zipper is subjected to lateral pull when the slider is held at the front yard, the first dummy elements can prevent the sliding contact of the slider from slipping from the rear opening of the slider. Protrusion prevents the left and right element rows from separating from the end on the front side. In addition, when the element row is separated from the fragile part, the first dummy element is pressed, so a gap through which the second dummy element and the slider sliding contact can pass can be ensured at the rear opening of the slider, and the second dummy element can be moved. 2Dummy elements and sliding contacts of the slider are pulled out smoothly from the element guide path of the slider.

And, according to the zipper covered product of the present invention sewn with the zipper having the above-mentioned structure, the slider of the zipper can be stopped by the first top piece of the top yard, and can be stably fixed by the second front yard piece of the top yard. Hold that stop. Thereby, even if a lateral pulling force is applied to the slide fastener upper end part holding a slider, sliding of a slider to the separation|separation direction of an element line can be suppressed, and the meshing state of an element line can be maintained stably.

Therefore, when the zipper-coated product is, for example, the training pants described in Patent Document 1, when putting on and taking off the training pants, even if the front end of the zipper disposed at the waist of the training pants receives a lateral pull, it can be Stably maintains the stopped state of the slider to maintain the shape of the trousers.

In such a zipper covered product of the present invention, the sewing line formed by sewing the zipper to the zipper covered product has a first sewn portion arranged parallel to the element row, and one end of the first sewn portion , and are arranged closer to the other end side (rear side) of the element row than the guide post of the slider held at the top end.

Thereby, for example, when the zipper-coated product is pulled in the belt width direction, it is possible to make it difficult or impossible for the transverse pulling force to act on the part where the first sewing part is not arranged (especially, the guide post that is held on the slider of the front yard). compared to the end of the zipper on the front yard side). Therefore, even if the zipper covered product is pulled in the belt width direction in a state where the slider is held by the top stopper, the slider can be more effectively suppressed from sliding in the separating direction of the element row.

In this case, the sewing thread further has a second sewing portion formed continuously from one end of the first sewing portion, and the second sewing portion is arranged obliquely at a predetermined angle with respect to the first sewing portion. Thereby, it is possible to make it difficult or impossible for lateral pulling force to act on the slide fastener end portion on the front side where the second sewing portion is not arranged (especially on the front side compared with the guide post of the slider held on the front side). zipper ends). Furthermore, the slide fastener and the slide fastener covered product can be stably sewn by the first and second sewing parts. In addition, in the fastener covered product of the present invention, the sewing line may be formed of only the first sewing part without the second sewing part.

In particular, the second sewn portion is at an angle of not less than 40° and not more than 90° (preferably, an angle of not less than 40° and not more than 50°) in the direction opposite to the element row with respect to the extension line of the first sewn portion. Angle) oblique arrangement, so that compared with the guide post of the slider held on the front yard, the lateral pulling force acting on the zipper end on the front yard side can be further reduced, or the transverse pulling force can hardly act on the zipper end. department. Furthermore, by making the inclination angle of the second sewn portion relative to the extension line of the first sewn portion 90° or less (preferably 50° or less), the zipper-covered product and the zipper can be sewn easily and stably, The fastener tape can be sewn to the fastener covered product up to the tape end.

In addition, in the present invention, there is provided a slide fastener-covered product in which a slide fastener is sewn, and the slide fastener includes a pair of left and right fastener chains in which element rows are attached to opposite tape side edge portions of a pair of fastener tapes. a tape; a slider capable of sliding along the element row; and a top stopper mounted on one end side of the element row of the fastener tape, wherein the slide fastener is sewn to the zipper covered product The resulting sewing line has a first sewing part arranged parallel to the element row, one end of the first sewing part and the guide column of the slider abutted against the top stopper. The position is arranged closer to the position on the other end side of the element row.

If it is such a zipper-coated product, when the zipper-coated product is pulled in the belt width direction, it is possible to make it difficult or impossible for the transverse pulling force to act on the part where the first sewing part is not arranged (especially, the part that is held in front of the seam). guide post on the slider of the yard compared to the end of the zipper on the front yard side). Therefore, in the state where the slider is held at the top, even if the zipper-coated product is pulled in the belt width direction and the zipper is subjected to a lateral pull, the slider can be effectively restrained from violating the direction of the user due to the lateral pull. Willingness to slide in the direction of separation of the element rows.

In particular, the sewing thread further has a second sewing portion formed continuously from one end of the first sewing portion, and the second sewing portion is obliquely arranged at a predetermined angle relative to the first sewing portion, so that the Lateral tension is less likely to act on the zipper end on the top side where the second sewn portion is arranged. Furthermore, the slide fastener and the slide fastener covered product can be stably sewn by the first and second sewing parts.

Description of drawings

Fig. 1 is a front view showing the front end side of the slide fastener according to the embodiment of the present invention.

Fig. 2 is a schematic diagram showing a state where the second top top part of the top top enters from the shoulder of the slider when the slider is slid until it abuts against the first top bottom part of the top top in the slide fastener.

Fig. 3 is a schematic diagram showing a state in which the second top stopper of the top stop is elastically deformed when the slider is slid until it comes into contact with the first top stopper of the top stopper.

Fig. 4 is a schematic view showing a state when the slider is slid and brought into contact with the first top top part of the top top.

Fig. 5 is a schematic diagram showing a state in which element rows on the left and right are separated from a fragile portion when separating the element rows of the slide fastener.

Fig. 6 is a schematic view showing a state where the second dummy element has slipped out from the rear opening of the slider.

Fig. 7 is a schematic diagram showing a state in which the slider sliding contact has come out from the rear opening of the slider.

Fig. 8 is a schematic view showing a state where the slider sliding contact has come out from the rear opening of the slider.

Fig. 9 is a schematic diagram showing a modified example of the slide fastener.

Fig. 10 is a schematic view showing a modified example of the second top fastener.

Fig. 11 is a perspective view showing training pants sewn with the zipper of the present invention.

Fig. 12 is a partially enlarged view showing enlarged fragile portions formed in element rows of the slide fastener.

Fig. 13 is an enlarged view showing an enlarged front end portion of a zipper arranged at a waist portion of training pants.

Fig. 14 is an explanatory diagram illustrating the relationship between the sewing line and the zipper when the zipper is sewn to the training pants.

Fig. 15 is an enlarged view illustrating an enlarged front end portion of a zipper disposed on a waist portion of training pants according to another embodiment of the present invention.

Fig. 16 is an explanatory diagram for explaining the relationship between the sewing line and the zipper in which the zipper is sewn to the training pants.

Fig. 17 is an explanatory diagram illustrating a relationship between a sewing line and a slide fastener according to a modified example.

Fig. 18 is an explanatory diagram illustrating the relationship between sewing lines and slide fasteners in another modified example.

Fig. 19 is a perspective view showing conventional training pants.

Fig. 20 is a schematic view showing a top size used in a conventional top-opening slide fastener.

Fig. 21 is a schematic diagram showing a top stopper used in a conventional slide fastener.

detailed description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited at all to each Example demonstrated below, As long as it has substantially the same structure as this invention, and the same operation effect is achieved, various changes are possible.

For example, in the following embodiments, a slide fastener having a weak portion provided in the center of the left and right element rows will be described, but the present invention is not limited thereto, and includes a slide fastener not provided with a weak portion on the element row. .

Here, FIG. 1 is a front view showing the front end side of a slide fastener according to an embodiment of the present invention, and FIGS. 2 to 4 illustrate how the slider is slid until it comes into contact with the first front stopper in the slide fastener. A schematic diagram of the relationship between the pull head and the front yard at the time.

In addition, in the following description, the tape length direction of a fastener tape shall be defined as the front-back direction, especially the direction which slides the slider so that the left and right element rows are meshed shall be made forward, and the direction which separates the element rows shall be defined as the front. The direction in which the slider slides is set to the rear. In addition, the belt width direction of the fastener tape is defined as the left-right direction, and when the slide fastener is viewed from the front side as shown in FIG. 1 , the left side is defined as the left side, and the right side is defined as the right side. And, the tape front and back direction of the fastener tape is defined as the up-down direction, and the side on which the handle of the slider is arranged is defined as the upper side with respect to the tape surface of the fastener tape, and the opposite side is defined as the lower side.

The slide fastener 10 of the present embodiment has: a left and right pair of fastener stringers 1 provided with element rows 3 at opposite tape side edge portions of the fastener tape 2; The front code 11 and the first simulated chain element 17 installed in the tooth row 3; the slider sliding contact 14 and the second simulated chain element 18 installed along the chain element row 3 on the upper end of the left side zipper stringer belt 1; An unillustrated insertion-separator attached to the lower end of the left and right fastener stringers 1 along the element row 3 ; and a slider 20 arranged so as to be slidable along the element row 3 .

In addition, the slider 20 and the insertion-separation tool which comprise the slide fastener 10 of this embodiment have substantially the same structure as the conventional slider and insertion-separation tool which are commonly used.

That is, the slider 20 of this embodiment is provided with the slider main body 21, and the handle 22 rotatably held by the slider main body 21. In addition, the slider body 21 has: upper and lower wings 23, 24; a guide column 25 connecting one end of the upper and lower wings 23, 24; Left and right flanges 26 extending in directions approaching each other; and a handle mounting post 27 erected in a gate shape on the upper surface of the upper wing plate 23 .

Moreover, the front-end|tip of this slider main body 21 is formed with the guide post 25 being interposed, and the left and right shoulders are formed, and the rear end of the slider main body 21 is formed with the rear opening. Furthermore, between the upper and lower blades 23 and 24, a Y-shaped element guide path 28 connecting the left and right shoulder openings and the back opening is formed.

In addition, the plug-and-separate member is configured to have: an insertion tube attached to the lower end of the fastener tape 2 on the left side along the element row 3; A seat tube; a socket formed integrally with the seat tube and capable of being inserted into the lower end of the intubation tube.

The fastener stringer 1 on either side in this embodiment has the fastener tape 2 and several fastener elements 4 made of synthetic resin arrange|positioned in a tape side edge part, respectively. Each of the left and right zipper tapes 2 is woven or braided into a tape shape with a narrow width, and has: a tape main body portion 2a sewn on a zipper covered product (for example, training pants described later); The chain element installation part 2b. Moreover, the core string part 5 is arrange|positioned at the tape edge of the element attaching part 2b side in the fastener tape 2. As shown in FIG.

The fastener elements 4 made of synthetic resin are lined up in the tape longitudinal direction by injection molding on the element attaching portion 2b including the cord portion 5 of the left and right fastener tapes 2 to form the element row 3 . In this case, each fastener element 4 has: an elliptical engaging head 4a; a main body 4c fixed to the fastener tape 2 so as to sandwich the core string 5; The neck 4b is formed in a tapered manner.

In addition, in the slide fastener 10 of the present embodiment, at least one weak portion 6 for partially reducing the meshing force of the left and right element rows 3 is provided at the central portion in the tape length direction (front-rear direction) of the element rows 3 . (Refer to Figure 12). This weak part 6 replaces the normal fastener element 4 which has the engaging head 4a, the neck 4b, and the main body part 4c, and only has at least one of the main body part 4c and the neck 4b by attaching and omitting the engaging head 4a. Zipper elements 4' are formed.

By applying lateral tension to the fragile portion 6 provided on the element row 3, the left and right fastener element rows 3 can be easily separated through the fragile portion 6, and the fastener element can be moved forward and rearward from the fragile portion 6. Column 3 is sequentially separated.

The top stopper 11 of this embodiment is attached to the element attaching part 2b including the core string part 5 of the fastener tape 2 on the right side. This front stopper 11 is made up of as follows: the first front stopper 12 that stops the sliding of the slider 20; The second front fasteners 12 and 13 are fixed to the fastener tape 2 by injection-molding synthetic resin of the same material as the fastener element 4 to the fastener tape 2 .

The first front stopper 12 of the top stopper 11 has a rectangular main body 12a in a front view, and a locking part 12b protruding from the main body 12a toward the inner side of the belt. The dimension (width dimension) of the main body part 12a of the first front stopper 12 is set to be smaller than the insertion width between the guide post 25 and the flange 26 of the slider 20, and is formed as a part of the main body part 12a. It can enter into the element guide passage 28 .

In addition, the locking portion 12b of the first front fastener 12 is formed so as to abut against the flange 26 of the slider 20 when a part of the main body portion 12a enters the element guide passage 28. Since the locking portion 12b abuts against The slide of the slider 20 can be stopped by being connected to the flange 26 .

The 2nd front stopper material 13 of the top stopper 11 has the fixed part 13a fixed to the fastener tape 2, and the extension part 13b extended outward from this fixed part 13a. The fixing portion 13a of the 2nd front stopper 13 is formed in a rectangular manner when viewed from the front side, and the end edge (right side edge) of the tape inner side of the fixing portion 13a is, as described later, in the second When the top piece 13 enters from the shoulder of the slider 20 and is inserted into the element guide passage 28, it becomes the sliding contact edge part 13c which slides in contact with the flange 26 of the slider 20. As shown in FIG.

The vertical thickness dimension (dimension in the vertical direction) of the fixing portion 13a is set to be larger than that between the flange 26 extending from the upper blade 23 of the slider 20 and the flange 26 extending from the lower blade 24 . The groove intervals of the belt through slots formed between them are large, and are set to be smaller than the intervals between the inner surfaces of the upper and lower wing plates 23, 24 of the slider 20.

The extension part 13b of the 2nd front stopper 13 is formed to have the same thickness dimension as the fixed part 13a. In addition, a hole portion 13d penetrating in the front-rear direction is provided at the central portion of the extension portion 13b. Since the extension portion 13b has the hole portion 13d, the extension portion 13b can be elastically deformed and contracted at least in the belt width direction.

And the outer peripheral surface of this extension part 13b has the 1st side wall surface 13e, the 2nd side wall surface 13f, and the 3rd side wall surface 13g at least. The first side wall surface 13e of the extension portion 13b is arranged to face the first front bracket 12, and is arranged on the same plane as the front end surface of the fixing portion 13a.

The second side wall surface 13f of the extension portion 13b is arranged continuously from the first side wall surface 13e, and is formed to bulge outward in a smooth curve. Since the second side wall surface 13f is disposed on the extension portion 13b, as described later, when the second front fastener 13 moves in the element guide path 28 toward the rear mouth side of the slider 20, the extension portion 13b recovers its elasticity. At this time, the rear mouth side end portion 25a of the guide post 25 of the slider 20 can be brought into contact with the second side wall surface 13f to maintain the stopped state of the slider 20 .

Furthermore, since the second side wall surface 13f is curved, for example, the slider 20 is moved toward the fastener element in a state where the rear mouth side end portion 25a of the guide post 25 of the slider 20 is in contact with the second side wall surface 13f. When sliding in the separation direction (rear) of the row 3, the elasticity of the extension portion 13b can be promoted so that the second front fastener 13 contracts in the belt width direction while the second side wall surface 13f is brought into sliding contact with the guide post 25 of the slider 20. deformation, thereby helping the second front stopper 13 to enter between the guide post 25 and the flange 26 of the slider 20 .

The 3rd side wall surface 13g of extension portion 13b is formed continuously from the 2nd side wall surface 13f, and is configured so that the size of the second front stopper 13 in the belt width direction (that is, from the sliding contact edge portion 13c of the fixed portion 13a to The dimension of the belt width direction to the side edge part of the extension part 13b which opposes the fastener stringer 1 on the left side gradually decreases toward the back.

By arranging the third side wall surface 13g on the extension portion 13b, as described later, when the second front fastener 13 enters the element guide passage 28 from the shoulder of the slider 20, the third side wall surface 13g can be aligned with the slider 20. While slidingly contacting the guide post 25, the second top fastener 13 can smoothly enter the element guide passage 28, and the elastic deformation of the extension part 13b can be promoted so that the second top fastener 13 can shrink in the belt width direction.

In this embodiment, the maximum dimension in the belt width direction of the second front fastener 13, that is, from the sliding contact edge portion 13c of the fixing portion 13a to the side edge facing the left fastener stringer 1 of the extension portion 13b The maximum dimension in the belt width direction up to the portion (the left side edge of the extension portion 13b) is set to be larger than the insertion width between the guide post 25 and the flange 26 in the element guide passage 28 of the slider 20 .

Here, the so-called penetration width between the guide post 25 and the flange 26 of the slider 20 refers to the distance between the guide post 25 and the flange 26, and in particular refers to the distance between the side wall of the guide post 25 and the flange when using a straight line. The linear distance when the distance is the shortest in the case of the inner wall surface of 26.

In the fastener stringer 1 on the right side, the first dummy element 17 is arranged between the top stopper 11 and the element row 3 . In particular, in this embodiment, when the slider 20 is brought into contact with the first front stopper 12 of the top stopper 11 to stop, the first dummy element 17 is arranged at a part capable of closing the rear opening of the slider 20 s position. Moreover, the 1st dummy element 17 has the main-body part 17a fixed to the fastener tape 2, and the head part 17b extended to tape outward from the main-body part 17a.

In this case, the head part 17b of the 1st dummy element 17 has the sliding contact surface which can slidably contact with the 2nd dummy element 18 mentioned later arrange|positioned in the fastener stringer 1 on the left side. Moreover, this head part 17b is formed by cutting off part of the back side, and is comprised so that it may not mesh with the fastener element 4 arrange|positioned at the front-end|tip of the element row 3 on the left side.

The slider sliding contact member 14 of the fastener stringer 1 arranged on the left side of the present embodiment is installed in a manner facing the top stopper 11, and has: a first sliding contact portion 15 arranged on the front side; The second sliding contact portion 16 on the rear side. These 1st and 2nd sliding contact parts 15 and 16 are formed by injection-molding the synthetic resin of the same material as the fastener element 4 on the fastener tape 2, and are fixed to the fastener tape 2 in the independent form mutually separated.

In addition, the first and second sliding contact portions 15 and 16 are each formed to have a substantially rectangular shape when viewed from the front side, and the first sliding contact portion 15 is formed to be wider than the second sliding contact portion 16 in the belt longitudinal direction. long. In this case, the thickness dimension of the vertical direction of the first and second sliding contact parts 15 and 16 is set to be larger than that between the flange 26 extending from the upper blade 23 of the slider 20 and the flange 26 extending from the lower blade 24 . The gaps between the flanges 26 formed with the slots are larger and smaller than the gaps between the inner surfaces of the upper and lower wings 23 , 24 of the slider 20 .

Thereby, the first and second sliding contact portions 15 and 16 can be smoothly inserted into the element guide passage 28 of the slider 20 . In addition, when the first and second sliding contact parts 15 and 16 are accommodated in the element guide passage 28 of the slider 20, even if the slide fastener 10 is subjected to a lateral pull force, the first and second sliding contact parts 15 and 16 will not The first and second sliding contact portions 15 and 16 can be stably held in the element guide passage 28 because they are separated from the belt threading slot of the slider 20 and abut against the flange 26 of the slider 20 .

In addition, in this embodiment, although the width dimension of the belt width direction of the 1st and 2nd sliding contact part 15,16 is set to a predetermined size or more in order to improve the fixing strength with the fastener tape 2, it is set so that It is smaller than the insertion width between the guide post 25 and the flange 26 of the slider 20 .

In particular, the width dimensions of the first and second sliding contact portions 15, 16 in the belt width direction are set to a size as follows: when the slider 20 is held by the second front stopper 13 as described later (see FIG. 4 ), the gap formed between the second front stopper 13 and the flange 26 on the left side of the slider 20 can be inserted. Thus, for example, when the left and right fastener element rows 3 are separated from the fragile portion 6, the first and second sliding contact portions 15, 16 can pass through the protrusion on the left side of the second front fastener 13 and the slider 20. The gap formed between the edges 26 makes it easy to pull out the first and second sliding contact parts 15 and 16 from the rear opening of the slider 20 .

In the fastener stringer 1 on the left side, the second dummy element 18 is arranged between the slider sliding contact 14 (first and second sliding contact parts 15 , 16 ) and the element row 3 . The second dummy element 18 has: a main body 18a fixed to the fastener tape 2; It is the sliding contact surface which the 1st dummy element 17 on the fastener stringer 1 on the right side slides in contact with.

In the present embodiment, the first and second dummy elements 17 and 18 are formed by making the first and second dummy elements 17 and 18 when the left and right element rows 3 are engaged and the slider 20 is held on the top stopper 11 . The head parts 17b, 18b of the elements 17, 18 are in contact with each other, and the slider sliding contact 14 and the second dummy element 18 can be prevented from slipping out of the rear opening of the slider 20 .

On the other hand, when the left and right element rows 3 are separated from the fragile portion 6 as described later, since the first and second dummy elements 17 and 18 are arranged, the second dummy element 18 can be pressed. The first dummy element 17 is rotated so that the slider sliding contact 14 arranged on the left fastener stringer 1 can be smoothly pulled out from the rear opening of the slider 20 (see FIGS. 6 to 8 ) .

Next, in the slide fastener 10 of the present embodiment having the above-mentioned structure, with regard to the state separated from the left and right element rows 3 , the slider 20 is slid in the meshing direction (upward) of the element rows 3 and the slider is moved. 20, the action when the top 11 is stopped and held is described.

First, the slider 20 is slid in the meshing direction of the element rows 3, and the left and right element rows 3 enter the element guide passage 28 from the shoulders of the slider 20, so that the left and right fastener elements 4 are meshed alternately and sequentially.

If the slider 20 is further slid, after the left and right element rows 3, the first dummy element 17 disposed on the fastener stringer 1 on the right and the first dummy element 17 disposed on the fastener stringer 1 on the left 2. The dummy element 18 enters the element guide passage 28 from the shoulder of the slider 20, and then the first and second dummy elements 17 and 18 are followed, as shown in FIG. The second front piece 13 on the top and the second sliding contact portion 16 arranged on the left fastener stringer 1 enter the element guide passage 28 from the shoulder of the slider 20 .

Next, when the second front fastener 13 moves toward the rear mouth side in the element guide passage 28 facing the second sliding contact portion 16, as shown in FIG. 3 , the sliding contact edge portion 13c of the second front fastener 13 The third side wall surface 13g disposed on the extension portion 13b of the second front stopper 13 is in sliding contact with the flange 26 arranged on the right side of the slider 20 , and is in sliding contact with the guide post 25 of the slider 20 .

At this time, the maximum dimension in the belt width direction of the second front fastener 13 is set to be wider than the insertion width between the guide post 25 and the flange 26 in the element guide passage 28 of the slider 20 as described above. However, the extension portion 13b of the second front bracket 13 is elastically deformed to reduce the width, so that the second front bracket 13 can be inserted between the guide post 25 and the flange 26 .

In particular, in the present embodiment, since the third side wall surface 13g in the extension portion 13b of the second front stopper 13 is inclined so that the width dimension of the second front stopper 13 gradually decreases toward the rear, by The third side wall surface 13g is brought into sliding contact with the guide column 25 of the slider 20, so that the elastic deformation of the extension part 13b can be promoted, and the second front fastener 13 can be smoothly entered into the element guide passage 28. In the case of the guide post 25 , it is inserted between the guide post 25 and the flange 26 .

On the other hand, regarding the second sliding contact part 16 in the fastener stringer 1 on the left side, as mentioned above, the thickness dimension of the second sliding contact part 16 is set to be larger than the upper and lower wing plates of the slider 20. The distance between the inner surfaces of 23 and 24 is small, and the width thereof is set to be smaller than the insertion width between the guide post 25 and the flange 26 of the slider 20 . Therefore, after the second dummy element 18 , the second sliding contact portion 16 can be smoothly entered into the element guide passage 28 .

And when the extension part 13b of the second front stopper 13 moves relatively to the rear mouth side of the slider 20 while elastically deforming by making the slider 20 slide further upward, the second front stopper 13 and the second The sliding contact portion 16 , the first front stopper 12 and the first sliding contact portion 15 enter the fastener element guide passage 28 from the shoulder of the slider 20 .

Next, as shown in FIG. 4 , since the locking portion 12 b disposed on the first front stopper 12 abuts against the right flange 26 of the slider 20 , the sliding of the slider 20 can be stopped. In addition, at the same time when the locking part 12b of the first front stopper 12 abuts against the right flange 26 of the slider 20, or when the locking part 12b of the first front stopper 12 is about to abut against the slider 20, In front of the right flange 26, the largest part of the second front stopper 13 in the width direction is moved to the rear compared with the rear mouth side end 25a of the guide column 25 of the slider 20, so that the second front stopper 13 The extension 13b of 13 is restored to elasticity.

As a result, the rear end portion 25a of the guide post 25 of the slider 20 can be brought into contact with the second side wall surface 13f of the extension portion 13b, so that the second front stopper 13 can be reliably supported by the first front stopper. 12 to stop the slider 20, thereby stably maintaining the stop state of the slider 20.

In particular, in this case, in the slide fastener 10 of this embodiment, since the second front stopper 13 abuts against the rear mouth side of the guide post 25 of the slider 20 accompanying the elastic recovery of the second front stopper 13 Therefore, at the moment when the second front stopper 13 abuts against the rear mouth-side end 25a of the guide post 25, the operation feeling of the slider 20 can be changed and a small contact sound can be generated.

Thus, the user of the slide fastener 10 can feel that the second front stopper 13 is in contact with the rear mouth side end 25a of the guide post 25, and can confirm that the stopped state of the slider 20 passes through the second front stopper. 13 and was maintained. As a result, the user can consciously and habitually perform the operation of sliding the slider 20 to the stop position where it comes into contact with the first front stopper 12 .

In addition, as shown in FIG. 4 , in this embodiment, when the slider 20 is held by the second front fastener 13 , the first and second sliding contact portions 15 and 16 arranged on the left fastener stringer 1 It is a state accommodated in the element guide passage 28 of the slider 20 . In particular, the second sliding contact portion 16 is located between the second front fastener 13 and the flange 26 on the left side of the slider 20 in a state slightly separated from the second front fastener 13 .

And, the first dummy element 17 arranged on the fastener stringer 1 on the right side is positioned so that the head of the first dummy element 17 is aligned with the left side of the fastener stringer 1 arranged on the left side. The 2nd dummy element 18 closes a part of the rear opening of the slider 20 in the state (or the state which approached) the fastener element 4 adjacent to the said 2nd dummy element 18 and the contact.

In this way, the slider 20 is stopped and held at the front stopper 11. Since the size of the second front stopper 13 in the width direction of the second front stopper 13 abutting against the rear mouth side end 25a of the guide post 25 of the slider 20 is larger than that of the guide post 25 and Since the insertion width between the flanges 26 is large, the stopped state of the slider 20 can be stably maintained.

In addition, in the state where the slider 20 is held on the top stopper 11, even if a lateral pull force is applied to the front end portion of the slide fastener 10 on which the top stopper 11 is arranged, for example, in a direction in which the left and right fastener tapes 2 are separated, In the element guide passage 28 of 20, the front stopper 11 (the first and second front stoppers 12, 13) and the slider sliding contact member 14 (the first and second sliding contact parts 15, 16) are still stably held , and the first and second dummy elements 17, 18 are held in a state in which the heads 17b, 18b of each other are brought into contact. Therefore, the left and right fastener stringers 1 can be prevented from slipping out of the slider 20, and the left and right element rows 3 in the meshed state can be prevented from being separated.

In addition, when a lateral pulling force is applied to the front end of the slide fastener 10, since the left and right flanges 26 receive stress in a direction separating from the slider sliding contact 14 and the top stopper 11, the slider 20 acts to make the pull force move. There is such a force that the slider 20 slides in the separating direction (backward) of the element rows 3 . However, since the slider 20 of the present embodiment is stably held by the second front fastener 13 as described above, it is possible to effectively prevent the slider 20 from sliding in the separating direction of the element row 3 .

Next, an operation when the slider 20 is slid backward in the separation direction of the element row 3 from the state (refer to FIG. 4 ) in which the slider 20 is held by the top stopper 11 will be described.

In this case, by holding the handle 22 of the slider 20 held on the top stopper 11 and pulling the slider 20 backward, the second end 25a of the guide column 25 of the slider 20 that contacts the rear mouth side end 25a The top piece 13 relatively moves toward the shoulder side of the slider 20 . At this time, the guide post 25 of the slider 20 can press the extension part 13b of the second front stopper 13 to elastically deform the extension part 13b, and the second front stopper 13 can be inserted into the guide post 25 of the slider 20. and the flange 26 on the right.

In particular, in the present embodiment, the second side wall surface 13f of the extension portion 13b is curved. Therefore, when sliding the slider 20 from the state where the rear mouth side end 25a of the guide post 25 is in contact with the second side wall surface 13f of the second front bracket 13, the curved surface of the second side wall surface 13f can be used to slide the slider 20 at the same time. The elastic deformation of the extension part 13b is promoted by the second side wall surface 13f, and the second front stopper 13 enters between the guide post 25 and the flange 26, so that the sliding resistance of the slider 20 can be eased when the sliding operation starts. Condition.

And, by making the second front stopper 13 enter between the guide post 25 and the flange 26 in this way, the state in which the slider 20 is held by the second front stopper 13 can be released, so the slider 20 can be moved backward smoothly. slide, and the left and right element rows 3 can be separated by the operation of sliding the slider 20 backward.

Next, in the slide fastener 10 of this embodiment, from the state where the left and right element rows 3 are meshed and the slider 20 is held at the top stop 11, the element row is formed starting from the weak portion 6 provided in the element row 3 . 3 The action when separating in sequence will be described.

In this case, by applying stress such as lateral tension to the fragile portion 6 provided on the element row 3, the left and right fastener element rows 3 can be separated through the weak portion 6, and furthermore, by connecting the left and right fastener stringers 1 to the Pulling in directions separated from each other, as shown in FIG. 5, can keep the slider 20 in the state of the top stopper 11, and separate the left and right fastener elements 4 sequentially until the front end and the rear end of the element row 3. department.

Next, after the fastener elements 4 disposed at the front ends of the left and right element rows 3 are disengaged from each other, the fastener stringer 1 on the left side is further pulled, so that the fastener stringer 1 disposed on the left side The second dummy element 18 presses the first dummy element 17 disposed on the fastener stringer 1 on the right side.

At this time, as shown in FIG. 6 , since the first dummy element 17 and the second dummy element 18 are not meshed with each other, the first dummy element 17 receives a pressing force from the second dummy element 18 and is viewed from the front. Rotate counterclockwise, thereby, the rear opening of the slider 20 blocked by the first simulated chain element 17 is opened, and the second simulated chain element 18 slides and contacts with the first simulated chain element 17 easily from the opened side. The rear mouth of pull head 20 is pulled out.

Moreover, after the second dummy element 18 is pulled out from the slider 20, the fastener stringer 1 on the left side is pulled, whereby the first sliding contact portion 15, behind the second dummy element 18, is in contact with the first one. The dummy element 17 comes out from the rear mouth of the slider 20 while being in contact, and after the first sliding contact portion 15 , the second sliding contact portion 16 comes out from the back mouth of the slider 20 while being in contact with the first dummy element 17 .

In particular, in this embodiment, the slider sliding contact member 14 is divided into the first sliding contact portion 15 and the second sliding contact portion 16 , so the first and second sliding contact portions 15 and 16 can be inserted into the slider 20 Between the flange 26 on the left side of the slider and the second front piece 13, it can be smoothly removed from the rear opening of the slider 20. Thereby, the fastener stringer 1 on either side can be pulled apart, and the slide fastener 10 can be fully opened.

In this way, according to the slide fastener 10 of this embodiment, since the lateral pull is applied to the fragile portion 6 provided on the element row 3 in the state where the slider 20 is held by the top stopper 11, the slider 20 can be operated without sliding. In this case, the left and right element rows 3 are separated from the fragile portion 6 easily and quickly, and the slide fastener 10 is opened.

Moreover, the slide fastener 10 of embodiment demonstrated above is comprised so that the element line 3 provided with the weak part 6 can separate the element line 3 on either side from this weak part 6, and is comprised. However, this invention also includes the slide fastener which does not provide a weak part in an element row as mentioned above.

Therefore, for example, as in the modified example shown in FIG. 9 , in the case of a slide fastener 10 ′ that does not have a weak portion on the element row 3 ′, the left and right element rows 3 will not slide without sliding the slider 20 . separate. Therefore, in this slide fastener 10', it is possible to omit the first and second dummy elements 17 and 18 provided for pulling the slider sliding contact 14 out of the slider 20 in the above-mentioned embodiment, and to replace these first and second dummy elements. The second fastener elements 17 and 18 are imitated, and the usual fastener elements 4 are attached.

Moreover, in this invention, the shape of the 1st and 2nd front stopper 12,13 and/or the slider sliding contact 14 is not limited to the said embodiment, It can change arbitrarily as needed.

That is, as long as the first front stopper of the present invention can abut against the shoulder side end of at least one of the guide post 25, the upper and lower wings 23, 24 and the flange 26 of the slider 20, the slider can 20, the locking portion 12b of the first front stopper 12 in the above-mentioned embodiment may not be provided, and the first front stopper 12' as shown in FIG. 9 may also be used.

With regard to the first front fastener 12' shown in FIG. 9, the size of the belt width direction of the first front fastener 12' is set to be larger than that of the guide post 25 and the flange 26 in the element guide passage 28 of the slider 20. The insertion width between them is large, and the sliding of the slider 20 can be stopped by contacting the shoulder-side end of the guide post 25 and the shoulder-side end of the flange 26 of the slider 20 .

In addition, in the second top fastener of the present invention, it is only necessary that the maximum dimension in the belt width direction from the sliding contact edge of the second top fastener to the opposite side edge is set to be larger than that in the element guide passage 28 of the slider 20. The insertion width between the guide column 25 and the flange 26 is large, and at least a part of the second top part can be elastically deformed in a manner that shrinks in the direction of the width of the belt, so the second front stopper shown in Figure 9 can be used, for example. 13' or various forms as shown in (a) to (j) of FIG. 10 .

Furthermore, the means for elastically deforming the second top fastener 13 is not limited to forming the hole portion 13d penetrating the belt front and back direction in the second top fastener 13 as described above. For example, a synthetic resin excellent in elasticity and/or an elastic body may be used as a material of the second top stop 13, and the second top stop 13 may be elastically deformable.

In addition, in the above-mentioned embodiment, the slider sliding contact 14 arranged on the fastener stringer 1 on the left side is composed of two sliding contact parts 15 and 16 separately fixed on the fastener tape 2, but in the present invention , the slider sliding contact 14 may be constituted by three or more sliding contact parts, or the slider sliding contact 14' may be formed singly as shown in FIG. 9 .

Next, the case where the zipper covered product in which the above-mentioned zipper 10 of this invention is sewn is the training pants 30 is demonstrated. In addition, the zipper covered product which sewed the zipper 10 of this invention is not limited to training pants, It can apply to other various products.

Here, FIG. 11 is a perspective view showing the training pants, and FIG. 12 is a partial enlarged view showing enlarged fragile parts formed in the element row of the slide fastener. FIG. 13 is an enlarged view showing the front end of the zipper disposed on the waist portion of the training pants, and FIG. 14 is an explanatory diagram illustrating the relationship between the zipper and the sewing line that sews the zipper to the training pants.

The training pants 30 shown in FIG. 11 are made of a material with excellent stretchability. The training pants 30 are sewn with a zipper 10 from one end on the waist side of the left and right legs 31 to the other end on the trouser leg side, and are configured so that the training pants 30 can be opened by opening the zipper 10. It is divided into the predecessor part and the back part. Moreover, in the element row 3 of the slide fastener 10 sewn on this training pants 30, the fragile part 6 with weak meshing force is provided in the vicinity of a knee part.

And, in this training pants 30, the fastener tape 2 of each slide fastener 10 is sewn by a sewing machine in a state overlapping the edge of the training pants 30, so on both sides of the left and right sandwiching the element rows 3, there are formed The zipper 10 is sewn onto the training pants 30 at a stitch 32 . In this case, the sewing line 32 arrange|positioned at the left and right both sides of the element row 3 is formed only by the 1st sewing part 32a parallel to the element row 3. As shown in FIG.

When sewing a zipper to a conventional zipper-coated product (for example, training pants), the sewing lines formed on the left and right sides of the element row are integrally formed over the zipper in parallel with the element row 3 . For example, when the zipper is equipped with a front stopper and a plug-in-separation part, the left and right sewing lines are from a position in front of the front stopper to a position behind the plug-in-separation part in the tape length direction of the zipper tape position is formed.

On the other hand, in the training pants 30 of this embodiment, as shown in FIG. 13 and FIG. The sewing line 32 ) on the right side is not integrally formed throughout the slide fastener 10 .

That is, the front end position 32b on the side of the top stopper 11 in the sewing line 32 (first sewing portion 32a) on the right side is the same as the pull position when the slider 20 is held on the top stopper 11 in the belt length direction. The position 33a of the rear mouth side end portion 25a of the guide post 25 of the head 20 is set on the rear side (the side where the inserting-separating member is arranged) and is preferably equal to the belt length of the second dummy element 18. The position 33b of the centerline of the direction is set on the rear side.

In other words, in the case of the training pants 30 of this embodiment, the sewing line 32 on the right side is at least the same as the rear mouth side end portion 25a of the guide post 25 of the slider 20 when the slider 20 is held on the top size 11. The position 33a is not formed on the front side, and the sewing line 32 on the right side is shorter in the tape length direction than the sewing line 32 on the left side.

Since the front end position 32b of the sewing line 32 on the right side is set on the rear side compared with the position 33a of the rear mouth side end portion 25a of the guide post 25 in this way, it is further in relation to the position of the center line of the second dummy element 18. 33b is set on the rear side, so, for example, when the waist of the training pants 30 is pulled and the front end of the zipper 10 is subjected to a lateral pull, the portion of the zipper 10 receiving the lateral pull can be deviated to the rear.

That is, in the case of this embodiment, it is possible to make it difficult for lateral pulling force to act on the portion where the sewing line 32 is not formed (that is, the position 33a of the rear mouth side end portion 25a of the guide post 25 of the slider 20 is closer to the front than the position 33a). side part).

As a result, in the part where the sewing line 32 parallel to the element row 3 is arrange|positioned, since the element row 3 on either side meshes firmly, it can bear even if it receives lateral pull force. On the other hand, since the sewing line 32 is not formed at the front end portion of the slide fastener 10 holding the slider 20, the lateral tensile force received by the front end portion can be reduced.

Thereby, since the stress which acts on the slider 20 via the element rows 3 on either side can also be reduced, the state in which the slider 20 is hold|maintained by the top stopper 11 can be stably maintained. Therefore, according to the training pants 30 of this embodiment, even if the waist of the training pants 30 is pulled strongly in the state where the slider 20 is held by the top stopper 11, it is possible to effectively prevent the slider 20 from being separated from the fastener element row 3 . slide.

In addition, in the training pants 30 of the present embodiment, a substantially fan-shaped cover 34 is arranged so that when the slider 20 is held on the top stop 11, the cover 34 can cover the upper blade 23 side and the upper blade 23 side of the slider 20. Both sides of lower wing plate 24 sides. Owing to having such a cover body 34, so when the left and right fastener element rows 3 are meshed to maintain the shape of the trousers, the slider 20 can be covered and concealed by the cover body 34, thereby improving the aesthetics of the training pants 30 and preventing The pulling handle 22 of the slider 20 swings. Furthermore, the slider 20 held by the top stopper 11 can be protected by the cover body 34, and the slider 20 can be prevented from being damaged or the like.

Moreover, since such a cover body 34 is arranged, when the slider 20 is slid backward from the state in which the slider 20 is held on the top stopper 11, the cover body 34 can be used as a handle for the user to hold the slide fastener 10. . Therefore, the slider 20 can be easily slid backward, and the operability of the slide fastener 10 can be improved.

As mentioned above, in the training pants 30 of this embodiment, by sliding the slider 20 of the zipper 10 to separate the element rows 3, the left and right zipper strings 1 can be opened to open the training pants 30 from the form of pants to The front body part and the back body part can also return the training pants 30 to the form of pants by engaging the element rows 3 with each other and connecting the fastener stringers 1 on the left and right.

In addition, even if the waist of the training pants 30 is pulled when putting on and taking off the training pants 30 , it is possible to make it difficult for lateral pulling force to act on the front end portion on the right side of the zipper 10 where the sewing line 32 is not formed. Furthermore, in the slide fastener 10 of this embodiment, the stop state of the slider 20 can be stably maintained by the 2nd top stop material 13 of the top stop 11. As shown in FIG. Therefore, even if a lateral pulling force acts on the front end of the slide fastener 10 when putting on and taking off the training pants 30, the slider 20 can be suppressed from freely sliding in the separating direction of the element row 3 without relying on human hands, and the element row 3 can be stably maintained. meshing state.

Therefore, the training pants 30 of the present embodiment can stably maintain the shape of the pants even if the waist is strongly pulled when wearing or taking them off, and the slider 20 does not slide unreasonably with respect to the element row 3 . situation, so the bad situation that the fastener element 4 is cut off by the back mouth of the slider 20 does not occur.

And, the training pants 30 of the present embodiment, since the weak portion 6 is provided on the element row 3 near the knee portion, so by locally applying a transverse pulling force to the weak portion 6, the left and right element rows 3 can be separated and Unzip the left and right zipper stringers 1 as previously described. Thereby, compared with the case where the slider 20 is slide-operated and the left and right fastener stringers 1 are opened, even when wearing athletic shoes etc., the training pants 30 can be taken off easily and quickly.

In addition, in the present embodiment, the front end position of the sewing line 32 on the right side is compared with the position 33a of the rear mouth side end portion 25a of the guide post 25 of the slider 20 when the slider 20 is held by the top stop 11. The setting on the rear side is preferably set on the rear side compared with the position 33b of the center line of the second dummy element 18, but in the present invention, instead of the sewing line 32 on the right side, it may be The front end position of the sewing line 32 on the left side, or the front end position of the sewing line 32 on both sides of the left and right sides sandwiching the element row 3 is set on the rear side compared with the position 33a. Preferably, It is set to the rear side rather than the said position 33b.

In particular, by setting the front end positions of the sewing threads 32 on the left and right sides closer to the position 33a of the rear mouth side end portion 25a of the guide post 25 of the slider 20 when the slider 20 is held on the top stop 11, The setting on the rear side is preferably set on the rear side compared with the position 33b of the center line of the second dummy element 18. Therefore, when the waist of the training pants 30 is pulled, the force acting on the slide fastener 10 can be made The magnitude of the lateral pulling force at the front end portion is further reduced, and as a result, the shape of the trousers can be more stably maintained.

Next, training pants of other embodiments in which the slide fastener of the present invention is sewn will be described.

Here, FIG. 15 is an enlarged view showing the front end of the zipper disposed on the waist portion of the training pants, and FIG. 16 is a diagram illustrating the relationship between the sewing line and the zipper formed by sewing the zipper on the training pants. Illustrating. In addition, in FIG. 15 , the front end of the sewing line on the right side formed by sewing the zipper on the training pants is covered by the cover body, but in order to easily judge the characteristics of the training pants of this embodiment, the sewing of the hidden part Lines are also illustrated with dashed lines.

In the training pants 40 of this other embodiment, the sewing line 42 which sewed the slide fastener 10 to the training pants 40 is arrange|positioned at the left and right both sides of the element row 3. As shown in FIG. Moreover, the sewing line 42 arrange|positioned at the right side of the fastener element row 3 has: the 1st sewing part 42a arrange|positioned in parallel with the fastener element row 3; The sewn part 42a is the 2nd sewn part 42c arrange|positioned obliquely at a predetermined angle.

In addition, in the training pants 40 of this other embodiment, about the structure other than the said sewing line 42, it is substantially the same as the training pants 30 shown in FIGS. 11-14. Therefore, in the training pants 40 of this other embodiment, components and components having the same configuration as those of the training pants 30 described above are denoted by the same reference numerals, and thus description thereof will be omitted.

In the sewing line 42 arranged on the right side of the element row 3, the front end position 42b of the first sewn part 42a arranged in parallel with the element row 3 is held at the same position as the slider 20 in the tape length direction. In the case of the top size 11, the position 33a of the rear mouth-side end portion 25a of the guide post 25 of the slider 20 is set on the rear side, and is preferably set at the center of the belt length direction of the second dummy element 18. The line position 33b is set on the rear side.

Thus, in the training pants 40, similarly to the training pants 30, the magnitude of the lateral pulling force received by the front end of the slide fastener 10 holding the slider 20 can be reduced, and the slider 20 can be stably maintained at the top. 11 states.

Moreover, the sewing line 42 arrange|positioned at the right side of the element row 3 has the 2nd sewing part 42c which is formed continuously from the front-end|tip position 42b of the 1st sewing part 42a, and is 2nd sewing part 42a with respect to the 1st sewing part 42a. It is arranged obliquely at a predetermined angle. In this case, the second sewn portion 42c is formed at an angle of not less than 40° and not more than 90°, preferably not less than 40° and not more than 50°, in the direction opposite to the element row 3 with respect to the extension line of the first sewn portion 42a. The following angles are arranged obliquely. Moreover, in the training pants 40 of this other embodiment, the 2nd sewn part 42c is arrange|positioned at an angle of 45 degrees with respect to the extension line of the 1st sewn part 42a.

Like this, the sewing line 42 on the right side is formed by the first sewing part 42a parallel to the element row 3 and the second sewing part 42c inclined at a predetermined angle with respect to the first sewing part 42. For example, when the waist of the training pants 40 is pulled and a lateral pulling force acts on the front end of the slide fastener 10, the lateral pulling force can be dispersed in the arrangement portion of the second sewn portion 42c, thereby effectively relieving the force acting on the front end of the slide fastener 10. Lateral tension of the department.

Accordingly, the stress acting on the slider 20 via the left and right element rows 3 can also be reduced at the front end of the slide fastener 10 , so that the state in which the slider 20 is held by the top stop 11 can be more stably maintained. Therefore, according to this training pants 40, even if the waist part of the training pants 40 is pulled strongly in the state which held the slider 20 in the top stopper 11, sliding of the slider 20 to the separation|separation direction of the element row 3 can be suppressed effectively.

In particular, in the training pants 40 of this embodiment, the second sewn portion 42c is inclined at an angle of 40° or more with respect to the extension line of the first sewn portion 42a, so that the relaxation effect on the front end of the slide fastener 10 can be stably obtained. The effect of lateral tension on the part. In addition, the second sewn portion 42c is inclined at an angle of 90° or less (preferably at an angle of 50° or less), particularly at an angle of 45° with respect to the extension line of the first sewn portion 42a, so that it can be easily and stably Sewing the training pants 40 and the zipper 10 can be easily performed, and the zipper tape 2 can be sewn to the training pants 40 up to the end of the tape. Furthermore, the formed sewing line 42 can be made to look beautiful, and the aesthetics of the training pants 40 can be improved.

In addition, in this training pants 40, as described above, the second sewn portion 42c is arranged obliquely at an angle of 45° with respect to the extension line of the first sewn portion 42a, but in the present invention, as shown in FIG. 17, for example, The second sewn portion 42c' may be formed at an angle (right angle) of 90° with respect to the extension line of the first sewn portion 42a.

Moreover, in the training pants 40, the sewing line 42 on the right side is formed by the 1st sewing part 42a parallel to the element row 3, and the 2nd sewing part 42c inclined at a predetermined angle with respect to the 1st sewing part 42a. However, in the present invention, instead of the sewing line 42 on the right side, the sewing line 42 on the left side is formed by the first sewing part 42a parallel to the element row 3 and the first sewing part 42a with respect to the first sewing part 42a. The second sewn portion 42c inclined at a predetermined angle is formed.

Moreover, as shown in FIG. 18 , both of the left and right sewing lines 42 sandwiching the element row 3 may be formed by the first sewing part 42 a parallel to the element row 3 and the first sewing part 42 a with respect to the first sewing part. The portion 42 is formed by a second sewn portion 42c inclined at a predetermined angle. Thus, the sewing line 42 of both left and right sides is formed by the 1st and 2nd sewing part 42a, 42b, and the lateral tension which acts on the front-end|tip part of the slide fastener 10 can be relaxed more effectively.

Explanation of reference signs

Claims (12)

1. A slide fastener comprising: a left and right pair of zipper strings (1) formed by installing element rows (3) on opposite side edges of a pair of zipper tapes (2); The sliding slider (20) of the chain element row (3); and the front yard (11), which is installed on one end side of the fastener element row (3) of the zipper tape (2), and prevents the slider ( 20) Falling off from the chain element row (3), the slider (20) has a substantially Y-shaped chain element between the upper and lower wings (23, 24) connected by the guide column (25) A guide passage (28) that connects the two shoulders opened on the front end side and the rear mouth opened on the rear end side, and the fastener element guide passage (28) is characterized in that, The front stopper (11) has: a first front stopper (12, 12) arranged on one of the zipper tapes (2) and used to abut against the shoulder-side end of the slider (20). '); arranged between the first front frame (12, 12') and the chain element row (3), and used to abut against the rear mouth side end of the guide column (25) ( 25a) to maintain the second front stopper (13, 13') of the stop state of the slider (20), The sliding contact edge (13c) of the second front fastener (13, 13') is in sliding contact with one flange (26) of the slider (20) to the other side of the fastener chain The maximum dimension of the belt (1) in the belt direction up to the opposing side edge portion is set to be larger than the guide post (25) in the element guide passage (28) and the one flange (26) The interspersed width between them is large, At least a part of the second top stop (13, 13') is configured to be elastically deformable so as to contract in the belt width direction. 2. The zipper according to claim 1, wherein, The second front piece (13, 13') has: a fixing part (13a) fixed on the zipper belt (2); connected to the extension part (13b) of the rear mouth side end part (25a) of the guide column (25), The extension part (13b) has a hole part (13d) penetrating through the front and back of the belt, and is elastically deformable. 3. The slide fastener according to claim 2, wherein, The extension part (13b) has: a first side wall surface (13e) disposed opposite to the first front stopper (12, 12'); formed continuously from the first side wall surface (13e), and a second side wall surface (13f) that makes the guide post (25) abut; and a third side wall surface (13g) that is formed continuously from the second side wall surface (13f) and is in sliding contact with A dimension in the belt width direction from the edge portion (13c) to the opposite side edge portion gradually decreases toward the element row (3). 4. The slide fastener according to claim 1, wherein, The element row (3) has at least one weak portion (6) that partially reduces the meshing force of the left and right element rows (3), On one end side of the element row (3) of the other fastener tape (2), the other side of the slider (20) is arranged so as to face the top stop (11). At least one slider sliding contact (14, 14') with which the flange (26) is in sliding contact, The thickness dimension of the slider sliding contact (14, 14') in the front and back direction is set to be larger than that of the other side extending from the upper wing (23) of the slider (20). The gap between the flange (26) of the slider (20) and the flange (26) of the other side extending from the lower flange (24) of the slider (20) is larger than that of The distance between the inner surfaces of the upper and lower wings (23, 24) of the slider (20) is small, The width dimension of the slider sliding contact (14, 14') in the belt width direction is set to be large when the slider (20) is held by the second front anchor (13, 13') It can be inserted between the flange (26) of the slider (20) and the second front piece (13, 13'). 5. The slide fastener according to claim 4, wherein, The slider sliding contact (14, 14') has two or more sliding contact portions (15, 16) separately fixed to the fastener tape (2). 6. The slide fastener according to claim 4, wherein, Between the element row (3) of one of the zipper tapes (2) and the second front piece (13, 13'), the first dummy element (17) is positioned between the slider (20) arranged in such a manner as to close a part of the rear opening of the slider (20) when being held by the second front stopper (13, 13'), On the other side of the zipper tape (2), the second simulated element (18) is opposite to the second front piece (13, 13') and the first simulated element (17) way to configure, The first and second dummy elements (17, 18) respectively have: a main body part (17a, 18a) fixed on the fastener tape (2); The heads (17b, 18b) extending outward and capable of sliding contact with each other, The second dummy element (18) is configured to be able to press the first dummy element (17) while the left and right element rows (3) start to separate from the weak portion (6). The element guide passage (28) from the slider (20) exits through the rear opening. A zipper covered product in which the zipper (10) according to any one of claims 1 to 6 is sewn. 8. The zipper covered product according to claim 7, wherein: A sewing line (32, 42) for sewing the slide fastener (10) to the slide fastener covered product (30, 40) has a first sewing line arranged parallel to the element row (3). part (32a, 42a), One end (32b, 42b) of the first sewn portion (32a, 42a) is closer to the guide post (25) of the slider (20) held on the top stopper (11) The position configuration of the other end side of the element row (3). 9. The zipper covered product according to claim 8, wherein: The sewing line (42) further has a second sewing portion (42c) formed continuously from one end (42b) of the first sewing portion (42a), The second sewn portion (42c) is arranged obliquely at a predetermined angle with respect to the first sewn portion (42a). 10. The zipper covered product according to claim 9, wherein: The second sewn portion (42c) is inclined at an angle of not less than 40° and not more than 90° in a direction opposite to the element row (3) with respect to an extension line of the first sewn portion (42a) configure. 11. A zipper covered product, sewn with the zipper (10) according to claim 1, the zipper covered product (30, 40) is characterized in that, A sewing line (32, 42) for sewing the slide fastener (10) to the slide fastener covered product (30, 40) has a first sewing line arranged parallel to the element row (3). part (32a, 42a), One end (32b, 42b) of the first sewing portion (32a, 42a) is closer to the position of the guide post (25) of the slider (20) abutting on the top stopper (11). The position configuration of the other end side of the element row (3). 12. The zipper covered product according to claim 11, wherein, The sewing line (42) further has a second sewing portion (42c) formed continuously from one end (42b) of the first sewing portion (42a), The second sewn portion (42c) is arranged obliquely at a predetermined angle with respect to the first sewn portion (42a).