US20130232737A1 - Fastener Stringer and Slide Fastener - Google Patents
Fastener Stringer and Slide Fastener Download PDFInfo
- Publication number
- US20130232737A1 US20130232737A1 US13/885,130 US201013885130A US2013232737A1 US 20130232737 A1 US20130232737 A1 US 20130232737A1 US 201013885130 A US201013885130 A US 201013885130A US 2013232737 A1 US2013232737 A1 US 2013232737A1
- Authority
- US
- United States
- Prior art keywords
- fastener
- tape
- slide fastener
- body portion
- width direction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/02—Slide fasteners with a series of separate interlocking members secured to each stringer tape
- A44B19/08—Stringers arranged side-by-side when fastened, e.g. at least partially superposed stringers
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/02—Slide fasteners with a series of separate interlocking members secured to each stringer tape
- A44B19/04—Stringers arranged edge-to-edge when fastened, e.g. abutting stringers
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/24—Details
- A44B19/34—Stringer tapes; Flaps secured to stringers for covering the interlocking members
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/24—Details
- A44B19/34—Stringer tapes; Flaps secured to stringers for covering the interlocking members
- A44B19/346—Woven stringer tapes
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D1/00—Woven fabrics designed to make specified articles
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2501/00—Wearing apparel
- D10B2501/06—Details of garments
- D10B2501/063—Fasteners
- D10B2501/0631—Slide fasteners
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/25—Zipper or required component thereof
- Y10T24/2561—Slider having specific configuration, construction, adaptation, or material
- Y10T24/2582—Slider having specific configuration, construction, adaptation, or material having specific contour or arrangement of converging channel, separator island, or wing
Definitions
- the invention relates to a slide fastener attached to seat covers, for example, for automobile seats and seat covers for sofas, and in particular, to a slide fastener configured to prevent floating or sinking of a fastener tape even when the slide fastener is curved in a tape width direction of the fastener tape.
- Conventional slide fasteners are broadly classified into two types, a standard-type slide fastener and a concealed-type slide fastener.
- the standard-type slide fastener is configured such that a fastener element is attached to opposing element attaching portions of a pair of fastener tapes in a state where a coupling head of the fastener element protrudes outward from a tape side end edge at the element attaching portion.
- a standard-type slide fastener generally, a state where at least a part of the fastener element is exposed to the outside when the left and right fastener elements are engaged is created.
- the concealed-type slide fastener (hereinafter, referred to simply as a concealed slide fastener) is configured such that the fastener element is concealed so as not to be visible from the outside when the left and right fastener elements are engaged.
- the concealed slide fastener is often used in the field of clothes, shoes, and the like from the perspective of design.
- a concealed slide fastener 80 disclosed in Patent Document 1 is a so-called woven-type concealed slide fastener 80 configured such that a fastener element 83 is attached to a fastener tape 82 simultaneously with weaving of the fastener tape 82 .
- the concealed slide fastener 80 of Patent Document 1 includes a pair of left and right fastener stringers 81 and a slider (not illustrated). Moreover, each of the left and right fastener stringers 81 includes a pair of left and right woven band-shaped fastener tapes 82 and a coil-shaped fastener element 83 woven into the fastener tapes 82 .
- the fastener tape 82 includes a tape body portion 82 a sewn to be attached to a fastener-attached product such as clothes, a tape bent portion 82 b that extends in a tape width direction from one side edge of the tape body portion 82 a and is bent in a U-shape, and an element attaching portion 82 c which extends further from the tape bent portion 82 b and to which the fastener element 83 is woven.
- the fastener element 83 is formed in a continuous shape by molding a monofilament made of a synthetic resin in a coil shape.
- the fastener element 83 includes a swollen coupling head 83 a formed by pressing the monofilament at a predetermined interval, upper and lower leg portions 83 b and 83 c that extend in the tape width direction from the coupling head 83 a , and a connecting portion 83 d that connects the adjacent fastener elements 83 .
- the fastener element 83 is attached to the fastener tape 82 by weaving the upper and lower leg portions 83 b and 83 c into the element attaching portion 82 c simultaneously with weaving of the fastener tape 82 in a state where the coupling head 83 a faces the inner side of the fastener tape 82 . Further, after weaving the fastener tape 82 , thermosetting is performed in a state where the fastener tape 82 is bent in a U-shape in the region of the tape bent portion 82 b so that the coupling head 83 a of the fastener element 83 protrudes outward from the tape bent portion 82 b . In this manner, the fastener stringer 81 is manufactured. And, when the obtained fastener stringers 81 are combined as two in one set, the concealed slide fastener 80 illustrated in FIG. 9 is obtained.
- a plurality of upper and lower fixing warp threads 84 a and 84 b that pass over the outer surfaces of the upper and lower leg portions 83 b and 83 c of the fastener element 83 and a plurality of fastening warp threads 84 c that intersect each other between the upper and lower leg portions 83 b and 83 c of the element and pass in a warp direction so as to alternately stride over the upper leg portion 83 b and the lower leg portion 83 c are disposed in the element attaching portion 82 c of the fastener tape 82 .
- a total fineness of a lower fixing warp thread 84 b that passes on a side closer to the coupling head 83 a of the element than the fastening warp thread 84 c among the plurality of lower fixing warp threads 84 b is higher than a total fineness of the upper fixing warp thread 84 a that passes on side closer to the coupling head 83 a than the fastening warp thread 84 c.
- the concealed slide fastener has been used in various products, for example, seat covers for automobile seats, seat covers for sofas, and the like, as well as various products such as clothes or shoes.
- the concealed slide fastener be configured so as to be used in various environments and conditions.
- the automobile seats are formed of a cushion body that is molded in a predetermined shape and is covered with the seat covers.
- the concealed slide fastener is attached to the seat covers in a state where the concealed slide fastener is curved in the tape front-rear direction or the tape width direction.
- the concealed slide fastener is sometimes attached to the seat covers by positively bending the concealed slide fastener in the tape front-rear direction or the tape width direction.
- the fastener tape used in the slide fastener is formed by weaving or sewing and is thus generally thin (has a small thickness) in the thickness direction.
- the fastener tape is configured to be wide (has a large width) in the width direction in order to stably sew the slide fastener to the fastener-attached product using a sewing machine.
- the thickness dimension of the fastener tape is set to be 1 mm or smaller.
- the width dimension of the fastener tape is set so that the width dimension of the tape extension portion can have generally a size of 12 mm or more so as to smoothly perform sewing with respect to various fastener-attached products using a sewing machine.
- the tape extension portion is a tape region that is exposed by being extended outward more than the connecting portion of the fastener element when the fastener stringer is observed from the fastener element side. Since the larger the dimension in the tape width direction of the tape extension portion, the more accurately the fastener tape can be pressed by the foot of the sewing machine when performing sewing using the sewing machine, sewing can be stably performed.
- the fastener tape is formed to be thin in the thickness direction and wide in the width direction (in particular, so that the tape extension portion can have a size of 10 mm or more).
- the concealed slide fastener for example, is curved in the tape front-rear direction so as to be attached to a fastener-attached product such as seat covers, since the fastener tape itself can be bent in the thickness direction (front-rear direction) relatively easily, it is possible to neatly sew the concealed slide fastener to the fastener-attached product.
- a tape extension portion (a tape extension portion curved in a convex shape) that reaches the outer circumference side of the concealed slide fastener may partially float or sink greatly.
- a large wavy wrinkle may be formed in a tape extension portion (a tape extension portion curved in a concave shape) that reaches the inner circumference side of the concealed slide fastener.
- the fastener tape is not accurately pressed by the foot of the sewing machine.
- the fastener tapes may partially overlap each other, it is difficult to perform sewing on the left and right fastener tapes of the concealed slide fastener using the sewing machine.
- the appearance (the quality of external appearance) of the fastener-attached product may deteriorate.
- the fastener tape may rub the slider.
- the sliding resistance of the slider may increase, and the sliding property of the slider may deteriorate.
- the invention has been made in view of the problems of the conventional technique, and a specific object of the invention is to provide a fastener stringer, and a slide fastener having the fastener stringer capable of maintaining a fastener tape in an approximately flat form to perform sewing stably when the slide fastener is curved in a tape width direction of a fastener tape so as to be sewn to a fastener-attached product, and preventing the occurrence of partial floating, sinking, or wavy wrinkles in the sewn fastener tape.
- a fastener stringer for a slide fastener includes, as a basic configuration, a fastener tape and a continuous fastener element attached to one side edge portion of the fastener tape, and in which the fastener element includes a coupling head, upper and lower leg portions extending in a tape width direction from the coupling head, and a connecting portion that connects the adjacent fastener elements, and the other side edge portion of the fastener tape extends beyond an edge of the fastener element closer to the connecting portion, being mainly characterized in that: an extension length of the fastener tape in the tape width direction from a position of an end edge at the connecting portion side of the fastener element to a tape end edge of the fastener tape at the other side edge side is restricted to be smaller than 12 mm.
- the extension length be restricted to 10 mm or smaller and further to 6 mm or smaller.
- the fastener tape be formed of fabrics and include a tape body portion and an element attaching portion disposed at one side edge side of the tape body portion, an ear portion be disposed in the other side edge portion of the tape body portion, and warp threads disposed in the ear portion have tensile strength higher than that of warp threads disposed in portions other than the ear portion of the tape body portion.
- the fastener stringer of the invention is ideally provided as a fastener stringer in which the fastener tape includes a tape body portion, a tape bent portion extending in the tape width direction from one side edge of the tape body portion so as to be bent in an U-shape, and an element attaching portion which extends further from the tape bent portion and to which the fastener element is attached, and the fastener element is attached to the element attaching portion of the fastener tape in such a manner that the coupling head protrudes outward from the tape bent portion.
- the fastener stringer of the invention is further ideally provided as a fastener stringer in which the fastener element is woven into the element attaching portion simultaneously with weaving of the fastener tape.
- the fastener stringer of the invention is ideally provided as a fastener stringer in which the fastener tape includes a tape body portion and an element attaching portion which extends in the tape width direction from one side edge of the tape body portion and to which the fastener element is attached, and the fastener element is attached to the element attaching portion of the fastener tape in such a manner that the coupling head protrudes outward from a tape side end edge at the element attaching portion side.
- the fastener tape of the fastener stringer includes the tape extension portion disposed in the other side edge portion of the fastener tape so as to extend beyond the end edge of the fastener element at the connecting portion side.
- the extension length (that is, the dimension in the tape width direction of the tape extension portion) of the fastener tape in the tape width direction from the position of the end edge at the connection portion side of the fastener element to the tape end edge of the fastener tape at the other side edge side is set to be smaller than 12 mm, and preferably 10 mm or smaller, and particularly preferably 6 mm or smaller.
- the extension length of the fastener tape is restricted to be smaller than 12 mm in this manner, when the fastener stringer is curved in the tape width direction of the fastener tape, it is possible to effectively decrease the magnitude of partial floating and sinking of the tape extension portion of the fastener tape and the magnitude of wavy wrinkling.
- the inventor of the invention repeatedly performed various tests and examinations while changing the extension length of the fastener tape and found that it is preferable to restrict the extension length to 10 mm or smaller and further to 6 mm or smaller. That is, if the extension length (the dimension in the tape width direction of the tape extension portion) is 10 mm or smaller, it is possible to decrease the magnitude of floating or sinking of the tape extension portion and the magnitude of wavy wrinkling and to make them less noticeable.
- the extension length is 6 mm or smaller, even when the bending (curvature) is increased so that the fastener stringer is curved in the tape width direction, it is possible to maintain the tape extension portion of the fastener tape in an approximately flat form.
- the fastener stringer is sewn to the fastener-attached product by curving the fastener stringer in the tape width direction of the fastener tape, since sewing can be performed while maintaining the tape extension portion of the fastener tape in an approximately flat form, it is possible to stably perform sewing of the fastener stringer.
- the tape extension portion of the fastener tape is very thin in the tape width direction, it is possible to obtain the effect of reducing the manufacturing cost of the slide fastener and decreasing the weight of the slide fastener.
- the fastener stringer of the invention it is possible to prevent the occurrence of partial floating, sinking, or wavy wrinkles in the fastener tape sewn to a fastener-attached product, or to make them small so as not to be noticeable even when partial floating, sinking, or wavy wrinkles occur. Therefore, it is possible to prevent deterioration of the quality of external appearance of the fastener-attached product to which the fastener stringer is sewn and attached.
- the fastener tape is formed of fabrics, and includes the tape body portion and the element attaching portion disposed on one side edge side of the tape body portion. Moreover, the ear portion is disposed in the other side edge portion of the tape body portion, and the warp threads disposed in the ear portion have tensile strength higher than that of the warp threads disposed in portions other than the ear portion of the tape body portion.
- four to six warp threads are disposed in the ear portion of the fastener tape. Since four or more warp threads are disposed in the ear portion, it is possible to more stably hold the form of the fastener tape. In particular, it is possible to stably bend the weft threads in the ear portion even when the weft threads have strong tensile strength and to stably hold the form of the fastener tape.
- the invention is ideally applied to a fastener stringer for a so-called concealed slide fastener, in which the fastener tape includes the tape body portion, the tape bent portion extending in the tape width direction from one side edge of the tape body portion so as to be bent in an U-shape, and the element attaching portion which extends further from the tape bent portion and to which the fastener element is attached, and the fastener element is attached to the element attaching portion of the fastener tape in such a manner that the coupling head protrudes outward from the tape bent portion.
- the fastener stringer of the invention can form a fastener stringer in which the fastener element is woven into the element attaching portion simultaneously with weaving of the fastener tape.
- the invention is ideally applied to a so-called standard-type fastener stringer in which the fastener tape includes the tape body portion and the element attaching portion which extends in the tape width direction from one side edge of the tape body portion and to which the fastener element is attached, and the fastener element is attached to the element attaching portion of the fastener tape in such a manner that the coupling head protrudes outward from the tape side end edge at the element attaching portion side.
- the fastener stringer for the slide fastener or the standard-type fastener stringer even when the fastener stringer is curved in the tape width direction of the fastener tape, it is possible to prevent the occurrence of partial floating, sinking, or wavy wrinkles in the tape extension portion of the fastener tape, or to make them small so as not to be noticeable even when partial floating, sinking, or wavy wrinkles occur.
- the dimension in the tape width direction of the tape extension portion of the fastener tape is set to be smaller than 12 mm, and preferably 10 mm or smaller, and particularly preferably 6 mm or smaller.
- FIG. 1 is a rear view illustrating the rear side of a concealed slide fastener according to a first embodiment of the invention.
- FIG. 2 is a cross-sectional view schematically illustrating a cross-section of the concealed slide fastener.
- FIG. 3 is a copy of the picture of the rear side of the concealed slide fastener.
- FIG. 4 is a copy of the picture of a front side of the concealed slide fastener.
- FIG. 5 is a rear view illustrating a state where the concealed slide fastener is curved in a tape width direction.
- FIG. 6 is a cross-sectional view of a concealed slide fastener according to a second embodiment of the invention.
- FIG. 7 is a front view of a slide fastener according to a third embodiment of the invention.
- FIG. 8 is a cross-sectional view of the slide fastener.
- FIG. 9 is a cross-sectional view illustrating the conventional concealed slide fastener.
- a continuous fastener element described in the following embodiment is formed by molding a monofilament in a coil shape
- the invention is not limited to this, and the continuous fastener element may be formed by molding the monofilament in a zigzag shape.
- FIG. 1 is a rear view illustrating the rear side of a concealed slide fastener according to a first embodiment
- FIG. 2 is a cross-sectional view schematically illustrating a cross-section of the concealed slide fastener in a comprehensible way.
- FIG. 3 is a copy of the picture of the rear side of the concealed slide fastener
- FIG. 4 is a copy of the picture of a front side of the concealed slide fastener.
- FIG. 2 the cross-section of a concealed slide fastener in which the left and right fastener elements are engaged is schematically shown in order to make the state of warp threads of a fastener tape understood better.
- a state where the tape bent portions of the left and right fastener tapes are separated from each other is shown although the left and right fastener elements are engaged with each other.
- the tape bent portions of the left and right fastener tapes are in contact with each other so that the fastener elements can be concealed so as not to be visible from the outer surface.
- a forward-backward direction indicates a longitudinal direction of a fastener tape, which is the same direction as a sliding direction in which a slider slides.
- a horizontal direction indicates a tape width direction of a tape body portion of the fastener tape, which is parallel to a tape surface of the tape body portion and is orthogonal to the tape longitudinal direction.
- a vertical direction indicates a tape front-rear direction orthogonal to the tape surface of the fastener tape, and in particular, a direction of a side of the fastener tape to which a fastener element is attached is defined as an upper side and the opposite direction is defined as a lower side.
- the lower surface side of the concealed slide fastener is a front surface side of the concealed slide fastener exposed to the outside.
- a concealed slide fastener 10 is used by being attached to a fastener-attached product such as seat covers of automobile seats, for example.
- the concealed slide fastener 10 includes a pair of left and right fastener stringers 20 in which an element row 22 is formed, a top stop 11 fixed to a front end side of the element row 22 of each fastener stringer 20 , a bottom stop 12 fixed to a rear end side of the element row 22 of each fastener stringer 20 , and a concealed slide fastener slider 13 attached so as to be slidable along the element row 22 .
- the concealed slide fastener 10 is configured such that the slider 13 is slid toward the top stop 11 to allow the left and right element rows 22 to engage with each other to close the concealed slide fastener 10 , and the slider 13 is slid toward the bottom stop 12 to allow the left and right element rows 22 to be separated from each other to open the concealed slide fastener 10 .
- the top stop 11 , the bottom stop 12 , and the concealed slide fastener slider 13 of the concealed slide fastener 10 have the same configuration as those generally used in the conventional art.
- each of the left and right fastener stringers 20 includes a sewn fastener tape 21 and a coil-shaped fastener element 23 attached to the fastener tape 21 , and the coil-shaped continuous fastener element 23 is woven into the fastener tape 21 , whereby the element row 22 is formed.
- the fastener tape 21 includes an element attaching portion 21 a in which the fastener element 23 is woven, a tape bent portion 21 b that extends in the tape width direction from one side edge of the element attaching portion 21 a so as to be bent in an U-shape, and a tape body portion 21 c that extends further from the tape bent portion 21 b and is a portion woven to a fastener-attached product.
- the fastener element 23 includes a coupling head 23 a formed by molding a monofilament made of a thermoplastic resin such as polyamide or polyester into a coil shape, upper and lower leg portions 23 b and 23 c formed so as to extend in the tape width direction from the coupling head 23 a , and a connecting portion 23 d that connects an edge end portion of the upper leg portion 23 b or the lower leg portion 23 c to the lower leg portion 23 c or the upper leg portion 23 b of a fastener element 23 that is adjacent in the forward-backward direction.
- the fastener element 23 is attached to the element attaching portion 21 a of the fastener tape 21 in a state where the coupling head 23 a protrudes outward from the tape bent portion 21 b of the fastener tape 21 .
- the fastener tape 21 of the first embodiment is woven by inserting a ground weft thread 24 a in an opening of a warp thread by reciprocating a carrier bar, and as illustrated in FIG. 2 , the tape body portion 21 c and the tape bent portion 21 b are fabrics that are woven from the ground weft thread 24 a formed of a two-folded yarn and a plurality of ground warp threads 24 b . Moreover, a knitting needle (not illustrated) is inserted into a tape end edge on a side of the tape body portion 21 c opposite to the side where the tape bent portion 21 b is formed, and the ground weft threads 24 a at the next positions are successively hooked to join the loop-like bent ends.
- the element attaching portion 21 a is formed using these warp threads 24 c , 24 d , 24 e , and 24 f and the ground weft thread 24 a , it is possible to tightly weave the fastener element 23 into the element attaching portion 21 a and to stabilize the attachment state of the fastener element 23 .
- polyester textured yarns having a thickness in the range from 160 decitex to 550 decitex are used for the various types of warp threads 24 b to 24 f disposed in the element attaching portion 21 a , the tape bent portion 21 b , and the tape body portion 21 c of the fastener tape 21
- polyester textured yarns having a thickness in the range from 550 decitex to 1100 decitex are used for the single yarns of the ground weft thread 24 a.
- the various types of warp threads 24 b to 24 f disposed in the element attaching portion 21 a , the tape bent portion 21 b , and the tape body portion 21 c have a thickness of 330 decitex, and the single yarns of the ground weft thread 24 a have a thickness of 700 decitex.
- the thickness and material of the ground weft thread and various warp threads are not particularly limited, but can be appropriately changed according to the size of the fastener element and the purpose or the like of the concealed slide fastener.
- the tape body portion 21 c of the fastener tape 21 includes a tape extension portion 25 that extends beyond an end edge of the fastener element 23 at the connecting portion 23 d side. That is, in the concealed slide fastener 10 of the first embodiment, when the position of the end edge of the fastener element 23 at the connecting portion 23 d side in relation to the horizontal direction of the concealed slide fastener 10 is used as a reference position, the dimension in the tape width direction of the tape body portion 21 c is set so that an extension length X from the reference position to a tape end edge of the fastener tape 21 at the tape body portion 21 c side satisfies a range of X>0 mm. In this case, when the concealed slide fastener 10 is observed from the fastener element 23 side, the tape extension portion 25 is exposed to the outside more than the connecting portion 23 d of the fastener element 23 .
- the dimension in the tape width direction of the tape extension portion 25 of the fastener tape 21 is restricted to 6 mm or smaller. That is, the dimension in the tape width direction of the tape body portion 21 c is set so that the extension length X from the reference position to the tape end edge of the fastener tape 21 at the tape body portion 21 c side satisfies a range of 0 mm ⁇ X ⁇ 6 mm.
- the thickness of the ground warp thread 24 b disposed in the tape body portion 21 c is set to 330 decitex as described above, and the tape extension portion 25 has, for example, a width dimension of 3 mm, approximately twenty ground warp threads 24 b are disposed in the tape extension portion 25 ( FIG. 2 illustrates the cross-section while decreasing the number of ground warp threads 24 b disposed in the tape extension portion 25 in order to easily understand the features of the concealed slide fastener 10 of the first embodiment).
- the dimension in the tape width direction of the tape extension portion 25 of the fastener tape 21 is restricted.
- the extension length X (the dimension in the tape width direction) of the tape extension portion 25 is 6 mm or smaller, when the concealed slide fastener 10 (the fastener stringer 20 ) is curved in the tape width direction of the fastener tape 21 as illustrated in FIG. 5 , for example, it is possible to effectively prevent the tape extension portion 25 from partially floating or sinking and to prevent the occurrence of wavy wrinkles in the tape extension portion 25 . Thus, it is possible to maintain the tape extension portion 25 in a flat form.
- the shorter the extension length X the easier it is to maintain the tape extension portion 25 in a flat form even when the fastener stringer 20 is curved in the tape width direction.
- the dimension in the tape width direction of the tape extension portion 25 decreases, it may be difficult to sew the fastener stringer 20 when the tape body portion 21 c of the fastener stringer 20 is sewn to be attached to a fastener-attached product.
- the extension length X from the reference position of the fastener tape 21 to the tape end edge is in the range of 0 mm ⁇ X ⁇ 2 mm, even when the fastener stringer 20 is greatly curved in the tape width direction, it is possible to suppress the tape extension portion 25 from partially floating more effectively than when the extension length X is in the range of 4 mm ⁇ X ⁇ 6 mm. Thus, it is possible to stably hold the tape extension portion 25 in a flat form.
- the extension length X from the reference position of the fastener tape 21 to the tape end edge is in the range of 4 mm ⁇ X ⁇ 6 mm
- the extension length X from the reference position of the fastener tape 21 to the tape end edge is in the range of 2 mm ⁇ X ⁇ 4 mm, for example, it is possible to hold the tape extension portion 25 in a flat form when the fastener stringer 20 is greatly curved in the tape width direction. Moreover, it is possible to perform sewing of the fastener stringer 20 smoothly when sewing the fastener stringer 20 to a fastener-attached product.
- the size of the extension length X of the fastener tape 21 may be selected optionally within the range of 0 mm ⁇ X ⁇ 6 mm according to the purpose or the like of the concealed slide fastener 10 .
- the tape body portion 21 c of the fastener tape 21 has an ear portion 26 disposed in a tape side edge portion on a side opposite to the tape bent portion 21 b , and the ground warp thread 24 b disposed in the ear portion 26 has tensile strength higher than that of the ground warp thread 24 b disposed in portions other than the ear portion 26 of the tape body portion 21 c .
- the ground warp thread 24 b disposed in the ear portion 26 has high tensile strength, as shown by the copy of the picture of the concealed slide fastener 10 in FIGS. 3 and 4 , for example, the ground warp thread 24 b disposed in the ear portion 26 becomes in a state where it extends more strongly than the ground warp thread 24 b disposed in the inner side.
- the number of ground warp threads 24 b disposed in the ear portion 26 is preferably set in the range from 4 to 6, and in the first embodiment, six warp threads having high tensile strength are disposed in the ear portion 26 . Since four or more high-tensile-strength warp threads are disposed in the ear portion 26 of the fastener tape 21 , even when the tensile strength applied to the ground weft thread 24 a is high (strong) or when the fastener tape 21 is curved in the tape width direction, it is possible to prevent an end edge of the fastener tape 21 at the ear portion 26 side from being twisted or bent and to stably hold the shape of the fastener tape 21 .
- the fastener stringer 20 is manufactured. Specifically, a weft thread is inserted into the openings of warp threads disposed in a predetermined number by reciprocating a carrier bar using a loom to form the fastener tape 21 having a predetermined dimension in the tape width direction in a desired woven fabric. In this case, the tensile strength of the warp thread is adjusted so that the tensile strength of the ground warp thread 24 b disposed in the ear portion 26 of the fastener tape 21 is increased, whereby the fastener tape 21 is woven.
- the coil-shaped fastener element 23 molded of a monofilament is woven into the element attaching portion 21 a of the fastener tape 21 in a state where the coupling head 23 a faces the inner side of the fastener tape 21 .
- a tape portion of the fastener tape 21 that becomes the tape bent portion 21 b is bent in a U-shape so that the coupling head 23 a of the fastener element 23 protrudes outward from the U-shaped tape bent portion 21 b .
- a thermosetting process is performed on the fastener tape 21 having such a bent shape. In this manner, the fastener stringer 20 for the concealed slide fastener in which the coupling head 23 a protrudes outward from the tape bent portion 21 b is obtained.
- the two obtained fastener stringers 20 are combined together, and the slider 13 is slidably attached to the element rows 22 of the fastener stringers 20 , whereby the concealed slide fastener 10 of the first embodiment is manufactured.
- the concealed slide fastener 10 when the left and right fastener elements 23 are engaged, the tape bent portions 21 b of the left and right fastener tapes 21 can be brought into contact with each other. Therefore, when the concealed slide fastener 10 is observed from the lower surface side (the side exposed to the outside), the left and right fastener elements 23 in the engaged state can be concealed by the fastener tape 21 (in particular, the tape bent portion 21 b and the tape body portion 21 c ).
- the extension length X (the dimension in the tape width direction) of the tape extension portion 25 of the fastener tape 21 is set to 6 mm or smaller that is extremely small than that of the conventional concealed slide fastener 10 .
- the concealed slide fastener 10 is curved in the tape width direction of the fastener tape 21 as illustrated in FIG. 5 , it is possible to effectively suppress the tape extension portion 25 of the fastener tape 21 from partially floating or sinking and to prevent the occurrence of wavy wrinkles in the tape extension portion 25 .
- the concealed slide fastener 10 of the first embodiment is sewn to be attached to a fastener-attached product such as automobile seat covers in a state where the concealed slide fastener 10 is curved in the tape width direction of the fastener tape 21 , it is possible to decrease or prevent the occurrence of swelling in the tape front-rear direction of the fastener tape 21 when the tape body portion 21 c (in particular, the position of the tape body portion 21 c at the tape bent portion 21 b ) of the fastener tape 21 and the fastener-attached product are sewn and attached together.
- the tape body portion 21 c in particular, the position of the tape body portion 21 c at the tape bent portion 21 b
- the concealed slide fastener 10 of the first embodiment is sewn to be attached to the fastener-attached product in a state where the concealed slide fastener 10 is curved in the tape width direction of the fastener tape 21 , it is possible to prevent the occurrence of partial floating, sinking, or wavy wrinkles in the fastener tape 21 or to make them small so as not to be noticeable even when partial floating, sinking, or wavy wrinkles occur. Therefore, it is possible to prevent deterioration of the quality of external appearance of the fastener-attached product to which the concealed slide fastener 10 is sewn and attached.
- the sliding resistance of the slider 13 may not increase due to the rubbing of the slider 13 and the fastener tape 21 , and deterioration of the sliding property of the slider 13 can be prevented.
- the concealed slide fastener 10 of the first embodiment four to six warp threads having such high tensile strength as described above are disposed in the tape side edge portion of the fastener tape 21 at the tape body portion 21 c side, whereby the ear portion 26 is formed. In this way, it is possible to stably hold the form (in particular, the form of the tape body portion 21 c ) of the fastener tape 21 .
- the concealed slide fastener 10 is curved in the tape width direction so as to be sewn to the fastener-attached product, it is possible to hold the tape extension portion 25 of the fastener tape 21 in an approximately flat form more reliably and to neatly perform sewing of the concealed slide fastener 10 more stably.
- FIG. 6 is a cross-sectional view of a concealed slide fastener according to a second embodiment.
- a concealed slide fastener 30 according to the second embodiment is configured such that unlike the first embodiment described above, the fastener element 43 is not woven into the element attaching portion simultaneously with the weaving of the fastener tape, but the fastener element 43 is sewn to be attached to the element attaching portion 41 a of the fastener tape 41 after the fastener tape 41 is woven in a predetermined tape width dimension.
- the concealed slide fastener 30 of the second embodiment will be described in detail.
- the concealed slide fastener 30 of the second embodiment includes a pair of left and right fastener stringers 40 having an element row formed of a fastener element 43 , a top stop (not illustrated) fixed to a front end side of the element row of each fastener stringer 40 , a bottom stop (not illustrated) fixed to a rear end side of the element row of each fastener stringer 40 , and a concealed slide fastener slider (not illustrated) attached to as to be slidable along the element row.
- Each of the left and right fastener stringers 40 includes a woven fastener tape 41 and a coil-shaped fastener element 43 sewn to be attached to the fastener tape 41 , and when the fastener element 43 is sewn to be attached to the fastener tape 41 , an element row is formed.
- the fastener tape 41 includes an element attaching portion 41 a sewn to be attached to the fastener element 43 , a tape bent portion 41 b that extends in the tape width direction from one side edge of the element attaching portion 41 a so as to be bent in an U-shape, and a tape body portion 41 c that extends further from the tape bent portion 41 b and is a portion woven to a fastener-attached product.
- polyester textured yarns having a thickness of 330 decitex are used for the various types of warp threads disposed in the element attaching portion 41 a , the tape bent portion 41 b , and the tape body portion 41 c , and polyester textured yarns having a thickness of 700 decitex are used for the single yarns of the weft threads.
- the fastener element 43 includes a coupling head 43 a , upper and lower leg portions 43 b and 43 c formed so as to extend in the tape width direction from the coupling head 43 a , and a connecting portion 43 d that connects an extension end portion of the upper leg portion 43 b or the lower leg portion 43 c to the lower leg portion 43 c or the upper leg portion 43 b of an element that is adjacent in the forward-backward direction.
- the fastener element 43 is sewn to be attached to the element attaching portion 41 a of the fastener tape 41 by sewing a sewing thread 47 to draw a double ring in a state where a core thread 48 is inserted between the upper and lower leg portions 43 b and 43 c , and the coupling head 43 a protrudes outward from the tape bent portion 41 b of the fastener tape 41 .
- the fastener tape 41 includes a tape extension portion 45 that extends outward more than the connecting portion 43 d of the fastener element 43 so as to be exposed to the outside when the concealed slide fastener 30 is observed from the fastener element 43 side.
- a dimension in the tape width direction of the tape body portion 41 c is set so that an extension length X from the reference position to a tape end edge of the fastener tape 41 at the tape body portion 41 c side satisfies a range of X>0 mm.
- a dimension in the tape width direction of the tape extension portion 45 of the fastener tape 41 is restricted to 6 mm or smaller. That is, the dimension in the tape width direction of the tape body portion 41 c is set so that the extension length X from the reference position to the tape end edge of the fastener tape 41 at the tape body portion 41 c side satisfies the range of 0 mm ⁇ X ⁇ 6 mm.
- the tape body portion 41 c of the fastener tape 41 has an ear portion 46 disposed in a tape side edge portion on a side opposite to the tape bent portion 41 b , and the warp thread disposed in the ear portion 46 has tensile strength higher than that of the warp thread disposed in portions other than the ear portion 46 of the tape body portion 41 c .
- six warp threads having high tensile strength are disposed in the ear portion 46 . In this way, it is possible to stabilize the form of the fastener tape 41 without causing a bias in the fastener tape 41 .
- FIG. 7 is a front view of a slide fastener according to a third embodiment
- FIG. 8 is a cross-sectional view of the slide fastener.
- a standard-type slide fastener 50 (hereinafter, the standard-type slide fastener will be referred to simply as a “slide fastener”) according to the third embodiment includes a pair of left and right fastener stringers 60 in which an element row 62 is disposed, a top stop 51 fixed to a front end side of the element row 62 of each fastener stringer 60 , a bottom stop 52 fixed to a rear end side of the element row 62 of each fastener stringer 60 , and a slider 53 attached so as to be slidable along the element row 62 .
- the top stop 51 , the bottom stop 52 , and the slider 53 have the same configuration as those generally used in the conventional art.
- each of the left and right fastener stringers 60 includes a woven fastener tape 61 and a coil-shaped fastener element 63 sewn to be attached to the fastener tape 61 , and when the fastener element 63 is sewn to be attached to the fastener tape 61 , an element row 62 is formed.
- the fastener tape 61 includes an element attaching portion 61 a to which the fastener element 63 is sewn and attached and a tape body portion 61 b that extends in the tape width direction from one side edge of the element attaching portion 61 a so as to be sewn to a fastener-attached product.
- polyester textured yarns having a thickness of 330 decitex are used for a plurality of warp threads disposed in the element attaching portion 61 a and the tape body portion 61 b
- polyester textured yarns having a thickness of 700 decitex are used for the single yarns of the weft threads.
- the fastener element 63 includes a coupling head 63 a , upper and lower leg portions 63 b and 63 c formed so as to extend in the tape width direction from the coupling head 63 a , and a connecting portion 63 d that connects an extension end portion of the upper leg portion 63 b or the lower leg portion 63 c to the lower leg portion 63 c or the upper leg portion 63 b of the element that is adjacent in the forward-backward direction.
- the fastener element 63 is sewn to be attached to the element attaching portion 61 a by sewing a sewing thread 67 to draw a double ring in a state where a core thread 68 is inserted between the upper and lower leg portions 63 b and 63 c , and the coupling head 63 a protrudes outward from a tape side end edge of the fastener tape 61 at the element attaching portion 61 a side.
- the fastener tape 61 includes a tape extension portion 65 that extends outward more than the connecting portion 63 d of the fastener element 63 so as to be exposed to the outside when the slide fastener 50 is observed from the fastener element 63 side (front side).
- the dimension in the tape width direction of the tape body portion 61 b is set so that an extension length X from the reference position to the tape end edge of the fastener tape 61 at the tape body portion 61 b side satisfies a range of X>0 mm.
- a dimension in the tape width direction of the tape extension portion 65 of the fastener tape 61 is restricted to 6 mm or smaller. That is, the dimension in the tape width direction of the tape body portion 61 b is set so that the extension length X from the reference position to the tape end edge of the fastener tape 61 at the tape body portion 61 b side satisfies the range of 0 mm ⁇ X ⁇ 6 mm.
- the fastener tape 61 has an ear portion 66 disposed in a tape side edge portion at the tape body portion 61 b side, and the warp thread disposed in the ear portion 66 has tensile strength higher than that of the warp thread disposed in portions other than the ear portion 66 of the tape body portion 61 b .
- six warp threads having high tensile strength are disposed in the ear portion 66 . In this way, it is possible to stabilize the form of the fastener tape 61 without causing a bias in the fastener tape 61 .
- the extension length X of the tape extension portion 65 of the fastener tape 61 is restricted to 6 mm or smaller.
- the slide fastener 50 of the third embodiment is sewn to a fastener-attached product such as automobile seat covers in a state where the slide fastener 50 is curved in the tape width direction of the fastener tape 61 , it is possible to stably sew the tape body portion 61 b of the fastener tape 61 and the fastener-attached product together.
- the slide fastener 50 of the third embodiment is sewn to be attached to the fastener-attached product in a state where the slide fastener 50 is curved in the tape width direction of the fastener tape 61 , it is possible to prevent the occurrence of partial floating, sinking, or wavy wrinkles in the fastener tape 61 or to make them small so as not to be noticeable even when partial floating, sinking, or wavy wrinkles occur. Therefore, it is possible to prevent deterioration of the quality of external appearance of the fastener-attached product to which the slide fastener 50 is sewn and attached and to prevent deterioration of the sliding property of the slider 53 .
Abstract
A fastener tape of a fastener stringer extends beyond an edge of a fastener element closer to a connecting portion and an extension length is restricted to be smaller than 12 mm. In this way, when the fastener stringer is curved in a tape width direction of the fastener tape, it is possible to effectively suppress a tape extension portion of the fastener tape from partially floating. Thus, it is possible to stably sew the fastener stringer while maintaining the tape extension portion in an approximately flat form even when the fastener tape is curved. Moreover, since floating or the like of the sewn fastener tape occurs rarely, it is possible to prevent deterioration of the quality of external appearance.
Description
- The invention relates to a slide fastener attached to seat covers, for example, for automobile seats and seat covers for sofas, and in particular, to a slide fastener configured to prevent floating or sinking of a fastener tape even when the slide fastener is curved in a tape width direction of the fastener tape.
- Conventional slide fasteners are broadly classified into two types, a standard-type slide fastener and a concealed-type slide fastener. The standard-type slide fastener is configured such that a fastener element is attached to opposing element attaching portions of a pair of fastener tapes in a state where a coupling head of the fastener element protrudes outward from a tape side end edge at the element attaching portion. In such a standard-type slide fastener, generally, a state where at least a part of the fastener element is exposed to the outside when the left and right fastener elements are engaged is created.
- On the other hand, the concealed-type slide fastener (hereinafter, referred to simply as a concealed slide fastener) is configured such that the fastener element is concealed so as not to be visible from the outside when the left and right fastener elements are engaged. In recent years, the concealed slide fastener is often used in the field of clothes, shoes, and the like from the perspective of design.
- An example of such a concealed slide fastener is disclosed in JP 2008-119076 A (Patent Document 1), for example. As illustrated in
FIG. 9 , a concealedslide fastener 80 disclosed in Patent Document 1 is a so-called woven-type concealedslide fastener 80 configured such that afastener element 83 is attached to afastener tape 82 simultaneously with weaving of thefastener tape 82. - More specifically, the concealed
slide fastener 80 of Patent Document 1 includes a pair of left andright fastener stringers 81 and a slider (not illustrated). Moreover, each of the left andright fastener stringers 81 includes a pair of left and right woven band-shaped fastener tapes 82 and a coil-shaped fastener element 83 woven into thefastener tapes 82. - The
fastener tape 82 includes atape body portion 82 a sewn to be attached to a fastener-attached product such as clothes, atape bent portion 82 b that extends in a tape width direction from one side edge of thetape body portion 82 a and is bent in a U-shape, and anelement attaching portion 82 c which extends further from thetape bent portion 82 b and to which thefastener element 83 is woven. - The
fastener element 83 is formed in a continuous shape by molding a monofilament made of a synthetic resin in a coil shape. Thefastener element 83 includes a swollencoupling head 83 a formed by pressing the monofilament at a predetermined interval, upper andlower leg portions 83 b and 83 c that extend in the tape width direction from thecoupling head 83 a, and a connectingportion 83 d that connects theadjacent fastener elements 83. - In this case, the
fastener element 83 is attached to thefastener tape 82 by weaving the upper andlower leg portions 83 b and 83 c into theelement attaching portion 82 c simultaneously with weaving of thefastener tape 82 in a state where the coupling head 83 a faces the inner side of thefastener tape 82. Further, after weaving thefastener tape 82, thermosetting is performed in a state where thefastener tape 82 is bent in a U-shape in the region of thetape bent portion 82 b so that the coupling head 83 a of thefastener element 83 protrudes outward from thetape bent portion 82 b. In this manner, thefastener stringer 81 is manufactured. And, when the obtainedfastener stringers 81 are combined as two in one set, the concealedslide fastener 80 illustrated inFIG. 9 is obtained. - In the fastener stringer 81 disclosed in Patent Document 1 in particular, a plurality of upper and lower
fixing warp threads lower leg portions 83 b and 83 c of thefastener element 83 and a plurality of fasteningwarp threads 84 c that intersect each other between the upper andlower leg portions 83 b and 83 c of the element and pass in a warp direction so as to alternately stride over theupper leg portion 83 b and the lower leg portion 83 c are disposed in theelement attaching portion 82 c of thefastener tape 82. Moreover, a total fineness of a lowerfixing warp thread 84 b that passes on a side closer to thecoupling head 83 a of the element than the fasteningwarp thread 84 c among the plurality of lowerfixing warp threads 84 b is higher than a total fineness of the upperfixing warp thread 84 a that passes on side closer to thecoupling head 83 a than the fasteningwarp thread 84 c. - In this way, since the plurality of lower
fixing warp threads 84 b that pass on the side closer to thecoupling head 83 a than the fasteningwarp thread 84 c is closely disposed, it is possible to prevent a positional shift of the lowerfixing warp thread 84 b even when the concealedslide fastener 80 receives a strong lateral pulling force in such a direction as to separate the left andright fastener tapes 82 in a state where the left andright fastener elements 83 are engaged. Thus, it is possible to effectively prevent formation of a gap between thetape bent portions 82 b of the left andright fastener tapes 82 and to maintain an excellent concealing property of the concealedslide fastener 80. -
- Patent Document 1: JP 2008-119076 A
- In recent years, by utilizing the advantages, the concealed slide fastener has been used in various products, for example, seat covers for automobile seats, seat covers for sofas, and the like, as well as various products such as clothes or shoes. Thus, it is desirable that the concealed slide fastener be configured so as to be used in various environments and conditions.
- For example, when the concealed slide fastener is used for seat covers for automobile seats, the automobile seats are formed of a cushion body that is molded in a predetermined shape and is covered with the seat covers. In this case, depending on the shape or the like of the automobile seats, the concealed slide fastener is attached to the seat covers in a state where the concealed slide fastener is curved in the tape front-rear direction or the tape width direction. Moreover, from the perspective of the design of the automobile seats, the concealed slide fastener is sometimes attached to the seat covers by positively bending the concealed slide fastener in the tape front-rear direction or the tape width direction.
- Meanwhile, the fastener tape used in the slide fastener is formed by weaving or sewing and is thus generally thin (has a small thickness) in the thickness direction. Moreover, the fastener tape is configured to be wide (has a large width) in the width direction in order to stably sew the slide fastener to the fastener-attached product using a sewing machine. Specifically, in the case of the conventional standard-type slide fastener or concealed slide fastener, for example, the thickness dimension of the fastener tape is set to be 1 mm or smaller. Moreover, the width dimension of the fastener tape is set so that the width dimension of the tape extension portion can have generally a size of 12 mm or more so as to smoothly perform sewing with respect to various fastener-attached products using a sewing machine.
- Here, the tape extension portion is a tape region that is exposed by being extended outward more than the connecting portion of the fastener element when the fastener stringer is observed from the fastener element side. Since the larger the dimension in the tape width direction of the tape extension portion, the more accurately the fastener tape can be pressed by the foot of the sewing machine when performing sewing using the sewing machine, sewing can be stably performed.
- As described above, in the conventional slide fastener, the fastener tape is formed to be thin in the thickness direction and wide in the width direction (in particular, so that the tape extension portion can have a size of 10 mm or more). Thus, when the concealed slide fastener, for example, is curved in the tape front-rear direction so as to be attached to a fastener-attached product such as seat covers, since the fastener tape itself can be bent in the thickness direction (front-rear direction) relatively easily, it is possible to neatly sew the concealed slide fastener to the fastener-attached product.
- In contrast, when the concealed slide fastener, for example, is curved in the tape width direction so as to be attached to a fastener-attached product such as seat covers, when the fastener tape is curved in the tape width direction, a tape extension portion (a tape extension portion curved in a convex shape) that reaches the outer circumference side of the concealed slide fastener may partially float or sink greatly. Moreover, a large wavy wrinkle may be formed in a tape extension portion (a tape extension portion curved in a concave shape) that reaches the inner circumference side of the concealed slide fastener.
- Thus, when the tape extension portion floats greatly, for example, the fastener tape is not accurately pressed by the foot of the sewing machine. Moreover, when a large wavy wrinkle is formed in the tape extension portion, for example, since the fastener tapes may partially overlap each other, it is difficult to perform sewing on the left and right fastener tapes of the concealed slide fastener using the sewing machine.
- Moreover, when large floating and sinking or a wavy wrinkle occurs in the sewn fastener tape, the appearance (the quality of external appearance) of the fastener-attached product may deteriorate. Further, when the above-described large floating, sinking, or wavy wrinkle occurs in the fastener tape of the sewn concealed slide fastener, and a slider is slid along an element row, the fastener tape may rub the slider. Thus, the sliding resistance of the slider may increase, and the sliding property of the slider may deteriorate.
- The invention has been made in view of the problems of the conventional technique, and a specific object of the invention is to provide a fastener stringer, and a slide fastener having the fastener stringer capable of maintaining a fastener tape in an approximately flat form to perform sewing stably when the slide fastener is curved in a tape width direction of a fastener tape so as to be sewn to a fastener-attached product, and preventing the occurrence of partial floating, sinking, or wavy wrinkles in the sewn fastener tape.
- In order to attain the object, a fastener stringer for a slide fastener according to the invention includes, as a basic configuration, a fastener tape and a continuous fastener element attached to one side edge portion of the fastener tape, and in which the fastener element includes a coupling head, upper and lower leg portions extending in a tape width direction from the coupling head, and a connecting portion that connects the adjacent fastener elements, and the other side edge portion of the fastener tape extends beyond an edge of the fastener element closer to the connecting portion, being mainly characterized in that: an extension length of the fastener tape in the tape width direction from a position of an end edge at the connecting portion side of the fastener element to a tape end edge of the fastener tape at the other side edge side is restricted to be smaller than 12 mm.
- In particular, in the invention, it is preferable that the extension length be restricted to 10 mm or smaller and further to 6 mm or smaller.
- In the fastener stringer according to the invention, it is preferable that the fastener tape be formed of fabrics and include a tape body portion and an element attaching portion disposed at one side edge side of the tape body portion, an ear portion be disposed in the other side edge portion of the tape body portion, and warp threads disposed in the ear portion have tensile strength higher than that of warp threads disposed in portions other than the ear portion of the tape body portion.
- In this case, it is particularly preferable that four to six warp threads be disposed in the ear portion.
- Moreover, the fastener stringer of the invention is ideally provided as a fastener stringer in which the fastener tape includes a tape body portion, a tape bent portion extending in the tape width direction from one side edge of the tape body portion so as to be bent in an U-shape, and an element attaching portion which extends further from the tape bent portion and to which the fastener element is attached, and the fastener element is attached to the element attaching portion of the fastener tape in such a manner that the coupling head protrudes outward from the tape bent portion.
- In particular, the fastener stringer of the invention is further ideally provided as a fastener stringer in which the fastener element is woven into the element attaching portion simultaneously with weaving of the fastener tape.
- On the other hand, the fastener stringer of the invention is ideally provided as a fastener stringer in which the fastener tape includes a tape body portion and an element attaching portion which extends in the tape width direction from one side edge of the tape body portion and to which the fastener element is attached, and the fastener element is attached to the element attaching portion of the fastener tape in such a manner that the coupling head protrudes outward from a tape side end edge at the element attaching portion side.
- Further, according to the invention, a slide fastener having the fastener stringer having the above-described configuration is provided.
- The fastener tape of the fastener stringer according to the invention includes the tape extension portion disposed in the other side edge portion of the fastener tape so as to extend beyond the end edge of the fastener element at the connecting portion side. The extension length (that is, the dimension in the tape width direction of the tape extension portion) of the fastener tape in the tape width direction from the position of the end edge at the connection portion side of the fastener element to the tape end edge of the fastener tape at the other side edge side is set to be smaller than 12 mm, and preferably 10 mm or smaller, and particularly preferably 6 mm or smaller.
- Since the extension length of the fastener tape is restricted to be smaller than 12 mm in this manner, when the fastener stringer is curved in the tape width direction of the fastener tape, it is possible to effectively decrease the magnitude of partial floating and sinking of the tape extension portion of the fastener tape and the magnitude of wavy wrinkling.
- In particular, the inventor of the invention repeatedly performed various tests and examinations while changing the extension length of the fastener tape and found that it is preferable to restrict the extension length to 10 mm or smaller and further to 6 mm or smaller. That is, if the extension length (the dimension in the tape width direction of the tape extension portion) is 10 mm or smaller, it is possible to decrease the magnitude of floating or sinking of the tape extension portion and the magnitude of wavy wrinkling and to make them less noticeable.
- Further, if the extension length is 6 mm or smaller, even when the bending (curvature) is increased so that the fastener stringer is curved in the tape width direction, it is possible to maintain the tape extension portion of the fastener tape in an approximately flat form. Thus, even when the fastener stringer is sewn to the fastener-attached product by curving the fastener stringer in the tape width direction of the fastener tape, since sewing can be performed while maintaining the tape extension portion of the fastener tape in an approximately flat form, it is possible to stably perform sewing of the fastener stringer. Further, in this case, since the tape extension portion of the fastener tape is very thin in the tape width direction, it is possible to obtain the effect of reducing the manufacturing cost of the slide fastener and decreasing the weight of the slide fastener.
- Moreover, in the fastener stringer of the invention, it is possible to prevent the occurrence of partial floating, sinking, or wavy wrinkles in the fastener tape sewn to a fastener-attached product, or to make them small so as not to be noticeable even when partial floating, sinking, or wavy wrinkles occur. Therefore, it is possible to prevent deterioration of the quality of external appearance of the fastener-attached product to which the fastener stringer is sewn and attached.
- Further, in a slide fastener configured using the fastener stringer, since the slider and the fastener tape rarely rub each other when the slider slides, it is possible to stably secure an excellent sliding property of the slider.
- In the fastener stringer of the invention, the fastener tape is formed of fabrics, and includes the tape body portion and the element attaching portion disposed on one side edge side of the tape body portion. Moreover, the ear portion is disposed in the other side edge portion of the tape body portion, and the warp threads disposed in the ear portion have tensile strength higher than that of the warp threads disposed in portions other than the ear portion of the tape body portion.
- In this way, it is possible to stably hold the form of the fastener tape in which the width dimension of the tape extension portion is restricted. Thus, since it is possible to more reliably prevent the occurrence of floating, sinking, or wavy wrinkles in the tape extension portion when the fastener stringer is curved, sewing of the fastener stringer can be more easily performed. Moreover, since the warp threads disposed in the ear portion have high tensile strength, it is possible to stabilize the woven fabrics of the tape body portion on the inner side of the ear portion and to expand the degree of freedom in the choice of woven fabrics employed in the fastener tape.
- In this case, four to six warp threads are disposed in the ear portion of the fastener tape. Since four or more warp threads are disposed in the ear portion, it is possible to more stably hold the form of the fastener tape. In particular, it is possible to stably bend the weft threads in the ear portion even when the weft threads have strong tensile strength and to stably hold the form of the fastener tape. On the other hand, since six or smaller warp threads are disposed in the ear portion, it is possible to prevent the tensile strength in a portion of the fastener tape at the ear portion side from becoming too strong, to prevent the portion of the fastener tape at the ear portion side from being contracted too much, and to prevent the occurrence of so-called bias in the fastener tape.
- The invention is ideally applied to a fastener stringer for a so-called concealed slide fastener, in which the fastener tape includes the tape body portion, the tape bent portion extending in the tape width direction from one side edge of the tape body portion so as to be bent in an U-shape, and the element attaching portion which extends further from the tape bent portion and to which the fastener element is attached, and the fastener element is attached to the element attaching portion of the fastener tape in such a manner that the coupling head protrudes outward from the tape bent portion.
- In this case, the fastener stringer of the invention can form a fastener stringer in which the fastener element is woven into the element attaching portion simultaneously with weaving of the fastener tape.
- Further, the invention is ideally applied to a so-called standard-type fastener stringer in which the fastener tape includes the tape body portion and the element attaching portion which extends in the tape width direction from one side edge of the tape body portion and to which the fastener element is attached, and the fastener element is attached to the element attaching portion of the fastener tape in such a manner that the coupling head protrudes outward from the tape side end edge at the element attaching portion side.
- In the fastener stringer for the slide fastener or the standard-type fastener stringer according to the invention, even when the fastener stringer is curved in the tape width direction of the fastener tape, it is possible to prevent the occurrence of partial floating, sinking, or wavy wrinkles in the tape extension portion of the fastener tape, or to make them small so as not to be noticeable even when partial floating, sinking, or wavy wrinkles occur.
- Moreover, in the slide fastener of the invention having the fastener stringer having the above-described configuration, the dimension in the tape width direction of the tape extension portion of the fastener tape is set to be smaller than 12 mm, and preferably 10 mm or smaller, and particularly preferably 6 mm or smaller. Thus, when the slide fastener of the invention is sewn to be attached to a fastener-attached product in a state where the slide fastener is curved in the tape width direction, it is possible to stably perform sewing of the fastener stringer.
- Moreover, in the slide fastener sewn to be attached to a fastener-attached product, it is possible to prevent the occurrence of partial floating, sinking, or wavy wrinkles in the fastener tape, or to make them small so as not to be noticeable even when partial floating, sinking, or wavy wrinkles occur. Thus, it is possible to prevent deterioration of the quality of external appearance of the fastener-attached product. Moreover, in this case, since the slider and the fastener tape rarely rub each other when the slider slides, it is possible to stably secure an excellent sliding property of the slider.
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FIG. 1 is a rear view illustrating the rear side of a concealed slide fastener according to a first embodiment of the invention. -
FIG. 2 is a cross-sectional view schematically illustrating a cross-section of the concealed slide fastener. -
FIG. 3 is a copy of the picture of the rear side of the concealed slide fastener. -
FIG. 4 is a copy of the picture of a front side of the concealed slide fastener. -
FIG. 5 is a rear view illustrating a state where the concealed slide fastener is curved in a tape width direction. -
FIG. 6 is a cross-sectional view of a concealed slide fastener according to a second embodiment of the invention. -
FIG. 7 is a front view of a slide fastener according to a third embodiment of the invention. -
FIG. 8 is a cross-sectional view of the slide fastener. -
FIG. 9 is a cross-sectional view illustrating the conventional concealed slide fastener. - Hereinafter, modes for carrying out the invention will be described in detail with reference to the drawings. The invention is not limited to the embodiments described below, and various changes can be made as long as substantially the same configuration and the same function and effect as the invention are implemented.
- For example, although a continuous fastener element described in the following embodiment is formed by molding a monofilament in a coil shape, the invention is not limited to this, and the continuous fastener element may be formed by molding the monofilament in a zigzag shape.
-
FIG. 1 is a rear view illustrating the rear side of a concealed slide fastener according to a first embodiment, andFIG. 2 is a cross-sectional view schematically illustrating a cross-section of the concealed slide fastener in a comprehensible way. Moreover,FIG. 3 is a copy of the picture of the rear side of the concealed slide fastener, andFIG. 4 is a copy of the picture of a front side of the concealed slide fastener. - In
FIG. 2 , the cross-section of a concealed slide fastener in which the left and right fastener elements are engaged is schematically shown in order to make the state of warp threads of a fastener tape understood better. For convenience of the drawings, a state where the tape bent portions of the left and right fastener tapes are separated from each other is shown although the left and right fastener elements are engaged with each other. In an actual concealed slide fastener, when the left and right fastener elements are engaged, as will be described below, the tape bent portions of the left and right fastener tapes are in contact with each other so that the fastener elements can be concealed so as not to be visible from the outer surface. - Moreover, in the following description, a forward-backward direction indicates a longitudinal direction of a fastener tape, which is the same direction as a sliding direction in which a slider slides. Also, a horizontal direction indicates a tape width direction of a tape body portion of the fastener tape, which is parallel to a tape surface of the tape body portion and is orthogonal to the tape longitudinal direction.
- Further, a vertical direction indicates a tape front-rear direction orthogonal to the tape surface of the fastener tape, and in particular, a direction of a side of the fastener tape to which a fastener element is attached is defined as an upper side and the opposite direction is defined as a lower side. In this case, the lower surface side of the concealed slide fastener is a front surface side of the concealed slide fastener exposed to the outside.
- A
concealed slide fastener 10 according to the first embodiment is used by being attached to a fastener-attached product such as seat covers of automobile seats, for example. Theconcealed slide fastener 10 includes a pair of left andright fastener stringers 20 in which anelement row 22 is formed, atop stop 11 fixed to a front end side of theelement row 22 of eachfastener stringer 20, abottom stop 12 fixed to a rear end side of theelement row 22 of eachfastener stringer 20, and a concealedslide fastener slider 13 attached so as to be slidable along theelement row 22. - The
concealed slide fastener 10 is configured such that theslider 13 is slid toward thetop stop 11 to allow the left andright element rows 22 to engage with each other to close theconcealed slide fastener 10, and theslider 13 is slid toward thebottom stop 12 to allow the left andright element rows 22 to be separated from each other to open theconcealed slide fastener 10. Thetop stop 11, thebottom stop 12, and the concealedslide fastener slider 13 of theconcealed slide fastener 10 have the same configuration as those generally used in the conventional art. - In the first embodiment, each of the left and
right fastener stringers 20 includes a sewnfastener tape 21 and a coil-shapedfastener element 23 attached to thefastener tape 21, and the coil-shapedcontinuous fastener element 23 is woven into thefastener tape 21, whereby theelement row 22 is formed. - The
fastener tape 21 includes anelement attaching portion 21 a in which thefastener element 23 is woven, a tapebent portion 21 b that extends in the tape width direction from one side edge of theelement attaching portion 21 a so as to be bent in an U-shape, and atape body portion 21 c that extends further from the tapebent portion 21 b and is a portion woven to a fastener-attached product. - The
fastener element 23 includes acoupling head 23 a formed by molding a monofilament made of a thermoplastic resin such as polyamide or polyester into a coil shape, upper andlower leg portions 23 b and 23 c formed so as to extend in the tape width direction from thecoupling head 23 a, and a connectingportion 23 d that connects an edge end portion of theupper leg portion 23 b or the lower leg portion 23 c to the lower leg portion 23 c or theupper leg portion 23 b of afastener element 23 that is adjacent in the forward-backward direction. Thefastener element 23 is attached to theelement attaching portion 21 a of thefastener tape 21 in a state where thecoupling head 23 a protrudes outward from the tapebent portion 21 b of thefastener tape 21. - The
fastener tape 21 of the first embodiment is woven by inserting aground weft thread 24 a in an opening of a warp thread by reciprocating a carrier bar, and as illustrated inFIG. 2 , thetape body portion 21 c and the tapebent portion 21 b are fabrics that are woven from theground weft thread 24 a formed of a two-folded yarn and a plurality ofground warp threads 24 b. Moreover, a knitting needle (not illustrated) is inserted into a tape end edge on a side of thetape body portion 21 c opposite to the side where the tapebent portion 21 b is formed, and theground weft threads 24 a at the next positions are successively hooked to join the loop-like bent ends. - An upper
fixing warp thread 24 c that passes in the warp direction over the upper surface side of theupper leg portion 23 b of eachfastener element 23, a lowerfixing warp thread 24 d that passes in the warp direction over the lower surface side of the lower leg portion 23 c of eachfastener element 23, afastening warp thread 24 e that passes in the warp direction so as to intersect each other between the upper andlower leg portions 23 b and 23 c, apositioning warp thread 24 f that restricts the positions in the weft direction of the upper and lower fixingwarp threads ground weft thread 24 a that is inserted into thetape body portion 21 c and the tapebent portion 21 b are disposed in theelement attaching portion 21 a of thefastener tape 21. Since theelement attaching portion 21 a is formed using thesewarp threads ground weft thread 24 a, it is possible to tightly weave thefastener element 23 into theelement attaching portion 21 a and to stabilize the attachment state of thefastener element 23. - Moreover, polyester textured yarns having a thickness in the range from 160 decitex to 550 decitex are used for the various types of
warp threads 24 b to 24 f disposed in theelement attaching portion 21 a, the tapebent portion 21 b, and thetape body portion 21 c of thefastener tape 21, and polyester textured yarns having a thickness in the range from 550 decitex to 1100 decitex are used for the single yarns of theground weft thread 24 a. - In particular, in the case of the first embodiment, the various types of
warp threads 24 b to 24 f disposed in theelement attaching portion 21 a, the tapebent portion 21 b, and thetape body portion 21 c have a thickness of 330 decitex, and the single yarns of theground weft thread 24 a have a thickness of 700 decitex. In the invention, the thickness and material of the ground weft thread and various warp threads are not particularly limited, but can be appropriately changed according to the size of the fastener element and the purpose or the like of the concealed slide fastener. - In the
concealed slide fastener 10 of the first embodiment, thetape body portion 21 c of thefastener tape 21 includes atape extension portion 25 that extends beyond an end edge of thefastener element 23 at the connectingportion 23 d side. That is, in theconcealed slide fastener 10 of the first embodiment, when the position of the end edge of thefastener element 23 at the connectingportion 23 d side in relation to the horizontal direction of theconcealed slide fastener 10 is used as a reference position, the dimension in the tape width direction of thetape body portion 21 c is set so that an extension length X from the reference position to a tape end edge of thefastener tape 21 at thetape body portion 21 c side satisfies a range of X>0 mm. In this case, when theconcealed slide fastener 10 is observed from thefastener element 23 side, thetape extension portion 25 is exposed to the outside more than the connectingportion 23 d of thefastener element 23. - By setting the extension length X from the reference position to the tape end edge to satisfy the range of X>0 mm in this manner, it is possible to reliably provide the
tape extension portion 25 to the left andright fastener tapes 21. In this manner, when thefastener tape 21 is formed while weaving thefastener element 23 therein using a loom as will be described below, it is possible to smoothly weave thefastener tape 21 while pulling (conveying) thetape extension portion 25 of the wovenfastener tape 21 between upper and lower rollers (not illustrated) on the downstream side of the loom. Thus, it is possible to stably weave thefastener tape 21 having a desired woven fabric with high accuracy while preventing flipping over or bending of thefastener tape 21. - Further, in the first embodiment, the dimension in the tape width direction of the
tape extension portion 25 of thefastener tape 21 is restricted to 6 mm or smaller. That is, the dimension in the tape width direction of thetape body portion 21 c is set so that the extension length X from the reference position to the tape end edge of thefastener tape 21 at thetape body portion 21 c side satisfies a range of 0 mm<X≦6 mm. - In this case, since the thickness of the
ground warp thread 24 b disposed in thetape body portion 21 c is set to 330 decitex as described above, and thetape extension portion 25 has, for example, a width dimension of 3 mm, approximately twentyground warp threads 24 b are disposed in the tape extension portion 25 (FIG. 2 illustrates the cross-section while decreasing the number ofground warp threads 24 b disposed in thetape extension portion 25 in order to easily understand the features of theconcealed slide fastener 10 of the first embodiment). Moreover, in the first embodiment, by decreasing the number of warp threads disposed in thetape body portion 21 c of the fastener tape 21 (specifically, the number of warp threads disposed in thetape body portion 21 c other than anear portion 26 described below), the dimension in the tape width direction of thetape extension portion 25 of thefastener tape 21 is restricted. - In this manner, since the extension length X (the dimension in the tape width direction) of the
tape extension portion 25 is 6 mm or smaller, when the concealed slide fastener 10 (the fastener stringer 20) is curved in the tape width direction of thefastener tape 21 as illustrated inFIG. 5 , for example, it is possible to effectively prevent thetape extension portion 25 from partially floating or sinking and to prevent the occurrence of wavy wrinkles in thetape extension portion 25. Thus, it is possible to maintain thetape extension portion 25 in a flat form. - In this case, the shorter the extension length X, the easier it is to maintain the
tape extension portion 25 in a flat form even when thefastener stringer 20 is curved in the tape width direction. However, if the dimension in the tape width direction of thetape extension portion 25 decreases, it may be difficult to sew thefastener stringer 20 when thetape body portion 21 c of thefastener stringer 20 is sewn to be attached to a fastener-attached product. - That is, in the
concealed slide fastener 10 of the first embodiment, when the extension length X from the reference position of thefastener tape 21 to the tape end edge is in the range of 0 mm<X≦2 mm, even when thefastener stringer 20 is greatly curved in the tape width direction, it is possible to suppress thetape extension portion 25 from partially floating more effectively than when the extension length X is in the range of 4 mm<X≦6 mm. Thus, it is possible to stably hold thetape extension portion 25 in a flat form. - On the other hand, for example, when the extension length X from the reference position of the
fastener tape 21 to the tape end edge is in the range of 4 mm<X≦6 mm, it is possible to press thetape body portion 21 c of thefastener tape 21 with the foot of a sewing machine more stably when sewing thefastener stringer 20 to a fastener-attached product using the sewing machine, for example, as compared to when the extension length X is in the range of 0 mm<X≦2 mm. Thus, it is possible to perform sewing of thefastener stringer 20 more smoothly. - Moreover, when the extension length X from the reference position of the
fastener tape 21 to the tape end edge is in the range of 2 mm<X≦4 mm, for example, it is possible to hold thetape extension portion 25 in a flat form when thefastener stringer 20 is greatly curved in the tape width direction. Moreover, it is possible to perform sewing of thefastener stringer 20 smoothly when sewing thefastener stringer 20 to a fastener-attached product. In the first embodiment, the size of the extension length X of thefastener tape 21 may be selected optionally within the range of 0 mm<X≦6 mm according to the purpose or the like of theconcealed slide fastener 10. - Moreover, in the
concealed slide fastener 10 of the first embodiment, thetape body portion 21 c of thefastener tape 21 has anear portion 26 disposed in a tape side edge portion on a side opposite to the tapebent portion 21 b, and theground warp thread 24 b disposed in theear portion 26 has tensile strength higher than that of theground warp thread 24 b disposed in portions other than theear portion 26 of thetape body portion 21 c. In this manner, since theground warp thread 24 b disposed in theear portion 26 has high tensile strength, as shown by the copy of the picture of theconcealed slide fastener 10 inFIGS. 3 and 4 , for example, theground warp thread 24 b disposed in theear portion 26 becomes in a state where it extends more strongly than theground warp thread 24 b disposed in the inner side. - In this case, the number of
ground warp threads 24 b disposed in theear portion 26 is preferably set in the range from 4 to 6, and in the first embodiment, six warp threads having high tensile strength are disposed in theear portion 26. Since four or more high-tensile-strength warp threads are disposed in theear portion 26 of thefastener tape 21, even when the tensile strength applied to theground weft thread 24 a is high (strong) or when thefastener tape 21 is curved in the tape width direction, it is possible to prevent an end edge of thefastener tape 21 at theear portion 26 side from being twisted or bent and to stably hold the shape of thefastener tape 21. - Moreover, since four or more high-tensile-strength warp threads are disposed in the
ear portion 26, it is possible to stabilize the woven fabrics of thefastener tape 21 on the inner side of theear portion 26, and for example, even when theconcealed slide fastener 10 is washed, it is possible to prevent the position of woven patterns from being shifted. Further, it is possible to greatly expand the degree of freedom in the choice of woven fabrics employed in thefastener tape 21. - On the other hand, since six or smaller high-tensile-strength warp threads are disposed in the
ear portion 26 of thefastener tape 21, it is possible to prevent the tensile strength in the tape longitudinal direction of theear portion 26 of thefastener tape 21 from becoming too strong. In this way, it is possible to prevent the occurrence of a so-called biased state in thefastener stringer 20, the state being a state where theentire fastener tape 21 is curved so that the tape side edge portion of thefastener tape 21 at theear portion 26 side is contracted greatly and the tape side edge portion has a concave shape. - Next, a method of manufacturing the
concealed slide fastener 10 according to the first embodiment will be described. First, thefastener stringer 20 is manufactured. Specifically, a weft thread is inserted into the openings of warp threads disposed in a predetermined number by reciprocating a carrier bar using a loom to form thefastener tape 21 having a predetermined dimension in the tape width direction in a desired woven fabric. In this case, the tensile strength of the warp thread is adjusted so that the tensile strength of theground warp thread 24 b disposed in theear portion 26 of thefastener tape 21 is increased, whereby thefastener tape 21 is woven. - Moreover, simultaneously with the weaving of the
fastener tape 21 in this manner, the coil-shapedfastener element 23 molded of a monofilament is woven into theelement attaching portion 21 a of thefastener tape 21 in a state where thecoupling head 23 a faces the inner side of thefastener tape 21. - Subsequently, after the
fastener tape 21 is woven, a tape portion of thefastener tape 21 that becomes the tapebent portion 21 b is bent in a U-shape so that thecoupling head 23 a of thefastener element 23 protrudes outward from the U-shaped tapebent portion 21 b. Further, a thermosetting process is performed on thefastener tape 21 having such a bent shape. In this manner, thefastener stringer 20 for the concealed slide fastener in which thecoupling head 23 a protrudes outward from the tapebent portion 21 b is obtained. - Further, the two obtained
fastener stringers 20 are combined together, and theslider 13 is slidably attached to theelement rows 22 of thefastener stringers 20, whereby theconcealed slide fastener 10 of the first embodiment is manufactured. In theconcealed slide fastener 10, when the left andright fastener elements 23 are engaged, the tape bentportions 21 b of the left andright fastener tapes 21 can be brought into contact with each other. Therefore, when theconcealed slide fastener 10 is observed from the lower surface side (the side exposed to the outside), the left andright fastener elements 23 in the engaged state can be concealed by the fastener tape 21 (in particular, the tapebent portion 21 b and thetape body portion 21 c). - In the
concealed slide fastener 10 of the first embodiment manufactured in the above-described manner, the extension length X (the dimension in the tape width direction) of thetape extension portion 25 of thefastener tape 21 is set to 6 mm or smaller that is extremely small than that of the conventionalconcealed slide fastener 10. Thus, it is possible to reduce the manufacturing cost of theconcealed slide fastener 10 and to reduce the weight. Moreover, even when theconcealed slide fastener 10 is curved in the tape width direction of thefastener tape 21 as illustrated inFIG. 5 , it is possible to effectively suppress thetape extension portion 25 of thefastener tape 21 from partially floating or sinking and to prevent the occurrence of wavy wrinkles in thetape extension portion 25. Thus, it is possible to maintain thetape body portion 21 c of thefastener tape 21 in an approximately flat form. - Thus, when the
concealed slide fastener 10 of the first embodiment is sewn to be attached to a fastener-attached product such as automobile seat covers in a state where theconcealed slide fastener 10 is curved in the tape width direction of thefastener tape 21, it is possible to decrease or prevent the occurrence of swelling in the tape front-rear direction of thefastener tape 21 when thetape body portion 21 c (in particular, the position of thetape body portion 21 c at the tapebent portion 21 b) of thefastener tape 21 and the fastener-attached product are sewn and attached together. Thus, it is possible to stably perform sewing of the concealed slide fastener 10 (or the fastener stringer 20) while maintaining thetape body portion 21 c of thefastener tape 21 in an approximately flat form. - Further, even after the
concealed slide fastener 10 of the first embodiment is sewn to be attached to the fastener-attached product in a state where theconcealed slide fastener 10 is curved in the tape width direction of thefastener tape 21, it is possible to prevent the occurrence of partial floating, sinking, or wavy wrinkles in thefastener tape 21 or to make them small so as not to be noticeable even when partial floating, sinking, or wavy wrinkles occur. Therefore, it is possible to prevent deterioration of the quality of external appearance of the fastener-attached product to which theconcealed slide fastener 10 is sewn and attached. - Moreover, when the
slider 13 is slid to open theconcealed slide fastener 10, since the occurrence of partial floating, sinking, or wavy wrinkles in thefastener tape 21 of theconcealed slide fastener 10 is prevented or is small, the sliding resistance of theslider 13 may not increase due to the rubbing of theslider 13 and thefastener tape 21, and deterioration of the sliding property of theslider 13 can be prevented. - Moreover, in the
concealed slide fastener 10 of the first embodiment, four to six warp threads having such high tensile strength as described above are disposed in the tape side edge portion of thefastener tape 21 at thetape body portion 21 c side, whereby theear portion 26 is formed. In this way, it is possible to stably hold the form (in particular, the form of thetape body portion 21 c) of thefastener tape 21. Thus, when theconcealed slide fastener 10 is curved in the tape width direction so as to be sewn to the fastener-attached product, it is possible to hold thetape extension portion 25 of thefastener tape 21 in an approximately flat form more reliably and to neatly perform sewing of theconcealed slide fastener 10 more stably. -
FIG. 6 is a cross-sectional view of a concealed slide fastener according to a second embodiment. - A
concealed slide fastener 30 according to the second embodiment is configured such that unlike the first embodiment described above, thefastener element 43 is not woven into the element attaching portion simultaneously with the weaving of the fastener tape, but thefastener element 43 is sewn to be attached to theelement attaching portion 41 a of thefastener tape 41 after thefastener tape 41 is woven in a predetermined tape width dimension. Hereinafter, theconcealed slide fastener 30 of the second embodiment will be described in detail. - The
concealed slide fastener 30 of the second embodiment includes a pair of left andright fastener stringers 40 having an element row formed of afastener element 43, a top stop (not illustrated) fixed to a front end side of the element row of eachfastener stringer 40, a bottom stop (not illustrated) fixed to a rear end side of the element row of eachfastener stringer 40, and a concealed slide fastener slider (not illustrated) attached to as to be slidable along the element row. - Each of the left and
right fastener stringers 40 includes a wovenfastener tape 41 and a coil-shapedfastener element 43 sewn to be attached to thefastener tape 41, and when thefastener element 43 is sewn to be attached to thefastener tape 41, an element row is formed. - The
fastener tape 41 includes anelement attaching portion 41 a sewn to be attached to thefastener element 43, a tapebent portion 41 b that extends in the tape width direction from one side edge of theelement attaching portion 41 a so as to be bent in an U-shape, and atape body portion 41 c that extends further from the tapebent portion 41 b and is a portion woven to a fastener-attached product. - In this case, polyester textured yarns having a thickness of 330 decitex are used for the various types of warp threads disposed in the
element attaching portion 41 a, the tapebent portion 41 b, and thetape body portion 41 c, and polyester textured yarns having a thickness of 700 decitex are used for the single yarns of the weft threads. - The
fastener element 43 includes acoupling head 43 a, upper andlower leg portions coupling head 43 a, and a connectingportion 43 d that connects an extension end portion of theupper leg portion 43 b or thelower leg portion 43 c to thelower leg portion 43 c or theupper leg portion 43 b of an element that is adjacent in the forward-backward direction. - Moreover, the
fastener element 43 is sewn to be attached to theelement attaching portion 41 a of thefastener tape 41 by sewing asewing thread 47 to draw a double ring in a state where acore thread 48 is inserted between the upper andlower leg portions coupling head 43 a protrudes outward from the tapebent portion 41 b of thefastener tape 41. - In the
concealed slide fastener 30 of the second embodiment, thefastener tape 41 includes atape extension portion 45 that extends outward more than the connectingportion 43 d of thefastener element 43 so as to be exposed to the outside when theconcealed slide fastener 30 is observed from thefastener element 43 side. That is, in theconcealed slide fastener 30 of the second embodiment, when the position of an end edge of thefastener element 43 at the connectingportion 43 d side in relation to the horizontal direction of theconcealed slide fastener 30 is used as a reference position, a dimension in the tape width direction of thetape body portion 41 c is set so that an extension length X from the reference position to a tape end edge of thefastener tape 41 at thetape body portion 41 c side satisfies a range of X>0 mm. - By setting the extension length X from the reference position to the tape end edge to satisfy the range of X>0 mm in this manner, it is possible to provide the
tape extension portion 45 to the left andright fastener tapes 41. In this manner, in manufacturing of theconcealed slide fastener 30, for example, when theconcealed slide fastener 30 is conveyed in a state of a fastener chain in order to perform a thermosetting process, a dying process, or the like on thefastener tape 41, it is possible to reliably put thetape extension portion 45 of thefastener tape 41 so as to be placed between upper and lower rollers. Thus, it is possible to stably perform a predetermined process on the fastener chain while preventing flipping over or bending of thefastener tape 41. - Moreover, in the
concealed slide fastener 30 of the second embodiment, a dimension in the tape width direction of thetape extension portion 45 of thefastener tape 41 is restricted to 6 mm or smaller. That is, the dimension in the tape width direction of thetape body portion 41 c is set so that the extension length X from the reference position to the tape end edge of thefastener tape 41 at thetape body portion 41 c side satisfies the range of 0 mm<X≦6 mm. - Further, in the
concealed slide fastener 30 of the second embodiment, thetape body portion 41 c of thefastener tape 41 has anear portion 46 disposed in a tape side edge portion on a side opposite to the tapebent portion 41 b, and the warp thread disposed in theear portion 46 has tensile strength higher than that of the warp thread disposed in portions other than theear portion 46 of thetape body portion 41 c. In this case, six warp threads having high tensile strength are disposed in theear portion 46. In this way, it is possible to stabilize the form of thefastener tape 41 without causing a bias in thefastener tape 41. - In the
concealed slide fastener 30 of the second embodiment having the above-described configuration, the extension length X of thetape extension portion 45 of thefastener tape 41 is restricted to 6 mm or smaller. Moreover, theear portion 46 in which the warp threads having high tensile strength are disposed is formed in the tape side edge portion of thefastener tape 41 at thetape body portion 41 c side. Thus, theconcealed slide fastener 30 of the second embodiment can provide the same advantages as those of theconcealed slide fastener 30 according to the first embodiment described above. -
FIG. 7 is a front view of a slide fastener according to a third embodiment, andFIG. 8 is a cross-sectional view of the slide fastener. - A standard-type slide fastener 50 (hereinafter, the standard-type slide fastener will be referred to simply as a “slide fastener”) according to the third embodiment includes a pair of left and
right fastener stringers 60 in which anelement row 62 is disposed, atop stop 51 fixed to a front end side of theelement row 62 of eachfastener stringer 60, abottom stop 52 fixed to a rear end side of theelement row 62 of eachfastener stringer 60, and aslider 53 attached so as to be slidable along theelement row 62. In this case, thetop stop 51, thebottom stop 52, and theslider 53 have the same configuration as those generally used in the conventional art. - In the third embodiment, each of the left and
right fastener stringers 60 includes a wovenfastener tape 61 and a coil-shapedfastener element 63 sewn to be attached to thefastener tape 61, and when thefastener element 63 is sewn to be attached to thefastener tape 61, anelement row 62 is formed. - The
fastener tape 61 includes anelement attaching portion 61 a to which thefastener element 63 is sewn and attached and atape body portion 61 b that extends in the tape width direction from one side edge of theelement attaching portion 61 a so as to be sewn to a fastener-attached product. In this case, polyester textured yarns having a thickness of 330 decitex are used for a plurality of warp threads disposed in theelement attaching portion 61 a and thetape body portion 61 b, and polyester textured yarns having a thickness of 700 decitex are used for the single yarns of the weft threads. - The
fastener element 63 includes acoupling head 63 a, upper andlower leg portions coupling head 63 a, and a connectingportion 63 d that connects an extension end portion of theupper leg portion 63 b or thelower leg portion 63 c to thelower leg portion 63 c or theupper leg portion 63 b of the element that is adjacent in the forward-backward direction. - Moreover, the
fastener element 63 is sewn to be attached to theelement attaching portion 61 a by sewing asewing thread 67 to draw a double ring in a state where acore thread 68 is inserted between the upper andlower leg portions coupling head 63 a protrudes outward from a tape side end edge of thefastener tape 61 at theelement attaching portion 61 a side. - In the
slide fastener 50 of the third embodiment, thefastener tape 61 includes atape extension portion 65 that extends outward more than the connectingportion 63 d of thefastener element 63 so as to be exposed to the outside when theslide fastener 50 is observed from thefastener element 63 side (front side). That is, in theslide fastener 50 of the third embodiment, when the position of an end edge of thefastener element 63 at the connectingportion 63 d side in relation to the horizontal direction of theslide fastener 50 is used as a reference position, the dimension in the tape width direction of thetape body portion 61 b is set so that an extension length X from the reference position to the tape end edge of thefastener tape 61 at thetape body portion 61 b side satisfies a range of X>0 mm. - By setting the extension length X from the reference position to the tape edge to satisfy the range of X>0 mm in this manner, it is possible to provide the
tape extension portion 65 to the left andright fastener tapes 61. In this manner, in manufacturing of theslide fastener 50, for example, when a sewing process of sewing thefastener element 63 to be attached to thefastener tape 61, a dying process of thefastener tape 61, and the like are performed, it is possible to reliably put thetape extension portion 65 of thefastener tape 61 so as to be placed between upper and lower rollers. Thus, it is possible to stably perform a predetermined process on the fastener chain while preventing flipping over or bending of thefastener tape 61. - Moreover, in the
slide fastener 50 of the third embodiment, a dimension in the tape width direction of thetape extension portion 65 of thefastener tape 61 is restricted to 6 mm or smaller. That is, the dimension in the tape width direction of thetape body portion 61 b is set so that the extension length X from the reference position to the tape end edge of thefastener tape 61 at thetape body portion 61 b side satisfies the range of 0 mm<X≦6 mm. - Further, in the
slide fastener 50 of the third embodiment, thefastener tape 61 has anear portion 66 disposed in a tape side edge portion at thetape body portion 61 b side, and the warp thread disposed in theear portion 66 has tensile strength higher than that of the warp thread disposed in portions other than theear portion 66 of thetape body portion 61 b. In this case, six warp threads having high tensile strength are disposed in theear portion 66. In this way, it is possible to stabilize the form of thefastener tape 61 without causing a bias in thefastener tape 61. - In the
slide fastener 50 of the third embodiment having the above-described configuration, the extension length X of thetape extension portion 65 of thefastener tape 61 is restricted to 6 mm or smaller. Thus, even when theslide fastener 50 is curved in the tape width direction, it is possible to effectively suppress thetape extension portion 65 of thefastener tape 61 from partially floating or sinking and the occurrence of wavy wrinkles. Therefore, it is possible to maintain thefastener tape 61 in an approximately flat form. - Therefore, when the
slide fastener 50 of the third embodiment is sewn to a fastener-attached product such as automobile seat covers in a state where theslide fastener 50 is curved in the tape width direction of thefastener tape 61, it is possible to stably sew thetape body portion 61 b of thefastener tape 61 and the fastener-attached product together. - Further, even after the
slide fastener 50 of the third embodiment is sewn to be attached to the fastener-attached product in a state where theslide fastener 50 is curved in the tape width direction of thefastener tape 61, it is possible to prevent the occurrence of partial floating, sinking, or wavy wrinkles in thefastener tape 61 or to make them small so as not to be noticeable even when partial floating, sinking, or wavy wrinkles occur. Therefore, it is possible to prevent deterioration of the quality of external appearance of the fastener-attached product to which theslide fastener 50 is sewn and attached and to prevent deterioration of the sliding property of theslider 53. -
-
- 10: CONCEALED SLIDE FASTENER
- 11: TOP STOP
- 12: BOTTOM STOP
- 13: CONCEALED SLIDE FASTENER SLIDER
- 20: FASTENER STRINGER
- 21: FASTENER TAPE
- 21 a: ELEMENT ATTACHING PORTION
- 21 b: TAPE BENT PORTION
- 21 c: TAPE BODY PORTION
- 22: ELEMENT ROW
- 23: FASTENER ELEMENT
- 23 a: COUPLING HEAD
- 23 b: UPPER LEG PORTION
- 23 c: LOWER LEG PORTION
- 23 d: CONNECTING PORTION
- 24 a: GROUND WEFT THREAD
- 24 b: GROUND WARP THREAD
- 24 c: UPPER FIXING WARP THREAD
- 24 d: LOWER FIXING WARP THREAD
- 24 e: FASTENING WARP THREAD
- 24 f: POSITIONING WARP THREAD
- 25: TAPE EXTENSION PORTION
- 26: EAR PORTION
- 30: CONCEALED SLIDE FASTENER
- 40: FASTENER STRINGER
- 41: FASTENER TAPE
- 41 a: ELEMENT ATTACHING PORTION
- 41 b: TAPE BENT PORTION
- 41 c: TAPE BODY PORTION
- 43: FASTENER ELEMENT
- 43 a: COUPLING HEAD
- 43 b: UPPER LEG PORTION
- 43 c: LOWER LEG PORTION
- 43 d: CONNECTING PORTION
- 45: TAPE EXTENSION PORTION
- 46: EAR PORTION
- 47: SEWING THREAD
- 48: CORE THREAD
- 50: SLIDE FASTENER
- 51: TOP STOP
- 52: BOTTOM STOP
- 53: SLIDER
- 60: FASTENER STRINGER
- 61: FASTENER TAPE
- 61 a: ELEMENT ATTACHING PORTION
- 61 b: TAPE BODY PORTION
- 62: ELEMENT ROW
- 63: FASTENER ELEMENT
- 63 a: COUPLING HEAD
- 63 b: UPPER LEG PORTION
- 63 c: LOWER LEG PORTION
- 63 d: CONNECTING PORTION
- 65: TAPE EXTENSION PORTION
- 66: EAR PORTION
- 67: SEWING THREAD
- 68: CORE THREAD
- X: EXTENSION LENGTH
Claims (9)
1. A fastener stringer for a slide fastener, including a fastener tape and a continuous fastener element attached to one side edge portion of the fastener tape, and in which the fastener element includes a coupling head, upper and lower leg portions extending in a tape width direction from the coupling head, and a connecting portion that connects the adjacent fastener elements, and the other side edge portion of the fastener tape extends beyond an edge of the fastener element closer to the connecting portion, wherein:
an extension length of the fastener tape in the tape width direction from a position of an end edge at the connecting portion side of the fastener element to a tape end edge of the fastener tape at the other side edge side is restricted to be smaller than 12 mm.
2. The fastener stringer according to claim 1 , wherein the extension length is restricted to 10 mm or smaller.
3. The fastener stringer according to claim 2 , wherein the extension length is restricted to 6 mm or smaller.
4. The fastener stringer according to claim 1 , wherein:
the fastener tape is formed of fabrics and includes a tape body portion and an element attaching portion disposed closer to one side edge side of the tape body portion;
an ear portion is disposed in the other side edge portion of the tape body portion; and
warp threads disposed in the ear portion have tensile strength higher than that of warp threads disposed in portions other than the ear portion of the tape body portion.
5. The fastener stringer according to claim 4 , wherein four to six warp threads are disposed in the ear portion.
6. The fastener stringer according to claim 1 , wherein:
the fastener tape includes a tape body portion, a tape bent portion extending in the tape width direction from one side edge of the tape body portion so as to be bent in an U-shape, and an element attaching portion which extends further from the tape bent portion and to which the fastener element is attached; and
the fastener element is attached to the element attaching portion of the fastener tape in such a manner that the coupling head protrudes outward from the tape bent portion.
7. The fastener stringer according to claim 6 , wherein:
the fastener element is woven into the element attaching portion simultaneously with weaving of the fastener tape.
8. The fastener stringer according to claim 1 , wherein:
the fastener tape includes a tape body portion and an element attaching portion which extends in the tape width direction from one side edge of the tape body portion and to which the fastener element is attached; and
the fastener element is attached to the element attaching portion of the fastener tape in such a manner that the coupling head protrudes outward from a tape side edge closer to the element attaching portion.
9. A slide fastener including the fastener stringer according to claim 1 .
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2010/070887 WO2012070116A1 (en) | 2010-11-24 | 2010-11-24 | Fastener stringer and slide fastener |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130232737A1 true US20130232737A1 (en) | 2013-09-12 |
Family
ID=46145493
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/885,130 Abandoned US20130232737A1 (en) | 2010-11-24 | 2010-11-24 | Fastener Stringer and Slide Fastener |
Country Status (5)
Country | Link |
---|---|
US (1) | US20130232737A1 (en) |
JP (1) | JPWO2012070116A1 (en) |
CN (1) | CN103228167A (en) |
TW (1) | TWI430760B (en) |
WO (1) | WO2012070116A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180317614A1 (en) * | 2015-12-02 | 2018-11-08 | Ykk Corporation | Tape Member for Slide Fastener and Manufacturing Method of Tape Member |
US10238186B2 (en) * | 2015-12-31 | 2019-03-26 | The North Face Apparel Corp. | Curved slide fasteners and related systems |
EP3632253A4 (en) * | 2017-05-26 | 2021-01-13 | YKK Corporation | Zip-fastener stringer |
US11363860B2 (en) * | 2019-11-23 | 2022-06-21 | Talon Technologies, Inc. | Waterproof curved zippers |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105050447B (en) | 2013-01-31 | 2019-08-06 | Ykk株式会社 | The manufacturing method and chain belt and zipper of article with zipper and the article with zipper |
CN104514855A (en) * | 2013-09-29 | 2015-04-15 | 张铭勇 | Chain pole and chain pole device |
CN108041768A (en) * | 2018-02-09 | 2018-05-18 | 徐宏敢 | Anti-arch strap slide fastener and its production technology |
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Publication number | Priority date | Publication date | Assignee | Title |
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US20180317614A1 (en) * | 2015-12-02 | 2018-11-08 | Ykk Corporation | Tape Member for Slide Fastener and Manufacturing Method of Tape Member |
US10863801B2 (en) * | 2015-12-02 | 2020-12-15 | Ykk Corporation | Tape member for slide fastener and manufacturing method of tape member |
US10238186B2 (en) * | 2015-12-31 | 2019-03-26 | The North Face Apparel Corp. | Curved slide fasteners and related systems |
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Also Published As
Publication number | Publication date |
---|---|
JPWO2012070116A1 (en) | 2014-05-19 |
TWI430760B (en) | 2014-03-21 |
WO2012070116A1 (en) | 2012-05-31 |
TW201221078A (en) | 2012-06-01 |
CN103228167A (en) | 2013-07-31 |
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Legal Events
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AS | Assignment |
Owner name: YKK CORPORATION, JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SHIMONO, MUCHIJI;REEL/FRAME:030405/0337 Effective date: 20130426 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |