CA2129194A1 - Slide fastener, method of manufacture and article therefrom - Google Patents
Slide fastener, method of manufacture and article therefromInfo
- Publication number
- CA2129194A1 CA2129194A1 CA002129194A CA2129194A CA2129194A1 CA 2129194 A1 CA2129194 A1 CA 2129194A1 CA 002129194 A CA002129194 A CA 002129194A CA 2129194 A CA2129194 A CA 2129194A CA 2129194 A1 CA2129194 A1 CA 2129194A1
- Authority
- CA
- Canada
- Prior art keywords
- stringer tape
- slide fastener
- fastening elements
- stringer
- folded
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
-
- 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
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/10—Slide fasteners with a one-piece interlocking member on each stringer tape
- A44B19/12—Interlocking member in the shape of a continuous helix
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/24—Details
- A44B19/26—Sliders
-
- 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
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/24—Details
- A44B19/40—Connection of separate, or one-piece, interlocking members to stringer tapes; Reinforcing such connections, e.g. by stitching
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/42—Making by processes not fully provided for in one other class, e.g. B21D53/50, B21F45/18, B22D17/16, B29D5/00
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/42—Making by processes not fully provided for in one other class, e.g. B21D53/50, B21F45/18, B22D17/16, B29D5/00
- A44B19/62—Assembling sliders in position on stringer tapes
Landscapes
- Slide Fasteners (AREA)
Abstract
A slide fastener formed by folding a single continuous piece of stringer tape so that the fastening elements provided along a longitudinal edge of the stringer tape are facing opposite to each other. The folded portion of the stringer tape forms an end stop at one end of the slide fastener. The fastening elements are threaded through a slider and another end stop is provided at the other end of the slide fastener.
Description
FIELD OF THE INVENTION
The present invention relates to a slide fastener and in particular to a slide fastener formed by a single continuous stringer tape having engageable fastening elements secured along a longitudinal edge thereof. The present invention also relates to a method of forming a slide fastener from a single continuous stringer tape.
BACKGROUND OF THE INVENTION
A conventional slide fastener is made from two separate opposite stringers. Each stringer comprises a tape and a row of engageable fastening elements secured to a longitudinal inner edge of the tape. The rows of engageable fastening elements of the two opposite stringers are threaded through a slider for engaging and disengaging the fastening elements of the slide fastener. End stops are secured to each end to hold the two lengths of tape together. This form of slide fastener has various known disadvantages.
For example, in order to attach this kind of slide fastener to a cloth article, for example a pillow case, or a bag, one has to measure the length of fastener to be used, cut a pair of interengaged fastener tapes to a desired length, sew the fastener tapes to the cloth article, i.e.
pillow case, or bag, thread the two fasteners through a slider, and form end stop members at both ends of the slide fastener.
.
One disadvantage of this kind of slide fastener is that the fastener has to be cut at both ends. The two ends will tend to become frayed. End stop members have to be employed at both ends of the fastener to order to reinforce the end portions as well as to limit the sliding movement of the slider. Both ends of the fastener are therefore subject to being torn or ragged. The cutting of the fastener tapes results in significant wastage, and extra cost.
BRIEF SUMMARY OF THE INVENTION
The present invention provides an improved slide fastener to overcome the disadvantages of the aonventional slide fastener.
The present invention also provides a method of forming a slide fastener adapted to be secured onto an article, or the like in a more efficient way.
According to the present invention, there is provided a slide fastener comprising a single continuous piece of stringer tape having identical engageable fastening elements secured along one side thereof, said stringer tape being folded to form two stringer tape sections with said engageable fastening elements facing opposite to each other, and one folded section, said folded section defining an end stop disposed at one end of said slide fastener, and a slider for engaging and disengaging said oppositely facing fastening elements from said one end of said slide fastener to the other end thereof.
212~1~4 The slide fastener further comprises an end stop provided at the other end of said slide fastener.
The present invention also provides a method of forming a slide fastener from a single continuous piece of stringer tape having a row of engageable fastening elements provided along a longitudinal edge thereof.
The method comprises the steps of folding said single continuous piece of stringer tape to form two stringer tape sections with engageable fastening elements facing opposite to each other, and one folded section defining an end stop at one end of said slide fastener, threading said fastening elements on opposite stringer tape sections through a slider, and attaching an end stop at the free ends of the two stringer tape sections.
The method further comprises the step of cutting said stringer tape to exact length.
The present invention further provides a method of forming a slide fastener on an article, for example, of fabric material, such as a pillow case or a bag, the article having a first panel member, a second panel member, and a joining portion between said first and second panel members.
The method comprises the steps of supplying a single continuous piece of stringer tape, having engageable fastening elements provided along a longitudinal edge thereof, from a roll of stringer tape, securing said stringer tape onto said first panel member, continuously securing said stringer tape onto said joining portion between said first and second panel members, continuously securing said stringer tape onto said second panel member, cutting said secured stringer tape to exact length from said roll of stringer tape, folding said article along said joining portion to form two parallel stringer tape sections with respective engageable fastening elements facing opposite to each other, and one folded stringer tape section defining an end stop, threading said opposite fastening elements through a slider, and attaching an end stop across the free ends of the folded stringer tape.
The method further comprises the step of subsequently securing the bag to close the other two sides.
The present invention further provides a method of forming a slide fastener on an article wherein the article is a bag having a first panel member and a second panel member defining three closed sides and one open side.
The various features of novelty which characterize the invention are pointed out with more particularity in the claims annexed to and forming a part of this disclosure.
For a better understanding of the invention, its operating advantages and specific objects attained by its use, reference should be had to the accompanying drawings and descriptive matter in which there are illustrated and described preferred embodiments of the invention.
212~194 IN THE DRAWINGS
Fig. 1 is a fragmentary perspective view of a slide fastener illustrating an embodiment of the present invention;
Fig. 2 is an enlarged fragmentary perspective view of an embodiment of an engageable fastening elements of the slide fastener of Fig. l;
Fig. 3 is an illustrative diagram showing a pillow case having a slide fastener at an open side thereof;
Fig. 4 is an illustrative diagram showing a stringer tape being fed from a roll and sewn onto a panel member;
Fig. 5 shows the stringer tape being cut to exact length;
Fig. 6 shows the panel member being folded up and formed with two closed sides by means of stitching; and Fig. 7 shows a pillow case formed by flipping the pillow case of Fig. 6 inside out.
DESCRIPTION OF A SPECIFIC EMBODIMENT
Referring now in more detail to the drawings, Fig. 1 shows a slide fastener generally represented by reference numeral 10. The slide fastener 10 comprises a single continuous piece of stringer tape 12. A row of engageable fastening elements 14 are secured to one longitudinal edge of the stringer tape 12.
In the embodiment shown in Fig. 2, the engageable fastening elements 14 are in the form of loops 16 of a , longitudinally extending helical coil 18. The coil 18, being made of synthetic resin, or metal, or other materials, is threaded in and wound along a longitudinal edge of the stringer tape 12.
The loops 16 are the portions of the coil 18 extending from the edge of the tape 12.
Each loop 16 defines an engaging space 20 therein.
Enlarged upper and under head portions 22, 24 are provided on each loop 16 along a tangential side of the coil 18.
Each loop 16 is identical and symmetric. Each of the head portions 22, 24 is identical and the function of which will be described later in more detail.
The stringer tape 12 with the coil 18 can be continuously produced by a stringer tape manufacturing machine already known in the prior art.
Referring again to Fig. 1, it will be seen that the stringer tape 12 is folded at a certain point and forms two opposite stringer tape sections 26, 28 and a folded end 30.
The two stringer tape sections 26, 28 are of the same length and are disposed in such a manner that the fastening elements 14a, 14b of the two stringer tape sections 26, 28 are facing opposite to each other.
The opposite fastening elements 14a, 14b are threaded through a slider 32. The slider 32 is adapted to slide to and fro from the free ends 34 to the folded end 30 thereby 21291~4 engaging and disengaging the oppositely facing fastening elements 14a, 14b.
In the illustrated embodiment of the slide fastener 10, the fastening elements 14 are identical and symmetrical, and are capable of two way engagement so that the fastening elements 14a disposed along the stringer tape section 26 can be interengaged with the fastening elements 14b disposed along the opposite running stringer tape section 28.
According to the present embodiment, the fastening elements 14 are in the form of loops 16 each defining an engaging space 20 and having an enlarged upper and under engaging head portion 22, 24. When opposite fastening elements 14a, 14b are forced to engage to each other by the slider 32, the head portions 22, 24 of one row of fastening elements 14 are adapted to be received in and interengaged with corresponding spaces 20 between the opposite row of fastening elements 14 thereby interlocking the opposite fastening elements 14a, 14b of the two stringer tape sections 26, 28, together with one another.
The loops 16 are disposed in a spaced apart relationship with one another defining in between engaging spaces 20. The loops 16 are identical in dimension. The upper and under head portions 22, 24 on each of the loops 16 are also identical in dimension and symmetrical, and are adapted for two way interdigital engagement.
21291~4 -When one section of the stringer tape 12 is folded back on the other section, the loops on one section of the stringer tape 12 are adapted to interengage with engaging spaces 20 on the other section, and the head portions 22, 24 on one section of the stringer tape 12 are adapted to interlock with the head portions 22, 24 on the other section.
The stringer tape 12 is made of flexible materials, usually woven cloth, and the fastening elements 14 on the stringer tape 12 are made of synthetic resin. The end 30 is formed simply by folding the stringer tape 12 at a certain point. The folded end 30 defines an end stop for limiting the movement of the slider 32 in one direction. No further end stop attachment or cutting or stitching is required.
Another end stop 36 is provided at the free ends 34 of the two stringer tape sections 26, 28 of the slide fastener 10 so as to limit the movement of the slider 32 in the other direction. This end stop 36 may be in the form of a piece of fabric, or a clip of metal or plastic, or simply stitching mounted across the free ends 34 of the two stringer tape sections 26, 28 of the stringer tape 12.
Fig. 3 illustrates the use of the slide fastener 10 of the present invention on an article, which in this illustration is a pillow case 40, shown in phantom lines.
The pillow case 40 has a first panel member 42 and a second panel member 44 adapted to be folded and stitched 212~19~
.
together to define three closed ends 46, 48, 50 and one open end 52.
The single continuous piece of stringer tape 12 is preferably fed from a roll 54 of stringer tape having fastening elements 14 mounted along a longitudinal edge thereof. As illustrated in Fig. 4, the stringer tape 12 is supplied to a sewing machine 56 at which it is sewn onto the first and second panel members 42, 44.
The first and second panel members 42, 44 are initially unfolded. The single stringer tape 12 is sewh onto an inner surface of the first panel member 42, and continuously onto an inner surface of the second panel member 44 along an edge portion of the panel members 42, 44.
The stringer tape 12 is cut from the roll 54 of stringer tape 12 to an exact length, as shown in Fig. 5.
The first and second panel members 42, 44 are then folded up along a region joining the two panel members 42, 44, in a direction as shown by the arrow in Fig. 5, so that the inner surfaces of the first and second panel members 42, 44 are facing outwards. The first and second panel members 42, 44 are folded up to define the closed side 46 and the open side 52 of the pillow case 40. The other closed sides 48, 50 of the pillow case 40 are closed up by stitching, as illustrated in Fig. 6.
212919~
The folded and stitched first and second panel members 42, 44 are then flipped inside out to form a pillow case in Fig. 7.
It will be seen that the first stringer tape section 26 is disposed on the first panel member 42 and the second stringer tape section 28 is disposed on the second panel member 44. The folded end 30 of the stringer tape 12 so formed is disposed at the closed side 46 of the pillow case 40.
The fastening elements 14 are threaded into a slider 32 and an end stop 36 is provided, in this embodiment, at the free ends of the stringer tape 12 to limit the movement of the slider 32.
The folded end 30 defines an end stop at the other end of the slide fastener 10.
It is understood that the slide fastener 10 is formed on the pillow case 40 by having a single continuous piece of stringer tape 12 sewn along the inner surface of the pillow case 40.
The end stop 30 of the slide fastener 10 is formed simply by folding up the stringer tape 12 at a certain point. The end stop 30 does not require any additional end stop members, or clips, or stitching, as in a conventional slide fastener with two separate stringer tapes, which may easily become ragged or torn.
212gl94 Also, the end stop 30 does not have any metal or plastic end stop member or bulky stitching which may cause discomfort to a user.
The slide fastener 10 of the present invention is therefore more durable and safe to use.
The method of forming a slide fastener of the present invention and its advantages are described in more detail, in comparison with a conventional slide fastener.
The stringer tape 12 is preferably fed from a roll of stringer tape having fastening elements 14 mounted along a longitudinal edge thereof. The stringer tape 12 is supplied to a sewing machine at which it is sewn onto an article, for example, of cloth. After the stringer tape 12 is sewn onto the article, the stringer tape 12 is cut once only, exactly to length, from the roll.
The stringer tape 12, being sewn on the article, is then folded. The two free ends 34 are threaded through a slider 32, and end stops 30, 36 are formed.
It will be seen that only one cutting of the stringer tape is required in making a slide fastener of the present invention. This cutting of the stringer tape is carried out after the single continuous piece of stringer tape is sewn onto the article.
This is a significant improvement compared with making a conventional slide fastener from a pair of stringer tapes with opposite engaging fastening elements, in which cutting 212~194 of the pair of stringer tapes may be carried out at two different stages, namely before and after the stringer tapes are sewn onto an article.
However, in the present invention there need be no waste of tape materials in making slide fasteners. The stringer tape can be cut to exact length at the first and only cutting in most cases.
Furthermore, it takes fewer steps to secure, or stitch a slide fastener of the present invention to an article than a conventional slide fastener having two parallel stringer tapes and engaging opposite slide fasteners.
According to the present invention, a single continuous piece of stringer tape is secured, usually stitched continuously to an article and then cut to exact length.
The stringer tape and the article are then folded up to form two stringer tape sections. The two stringer tape sections are then threaded through a slider, and finally an end stop is mounted across the free ends of the two stringer tape sections.
To secure or stitch a conventional slide fastener to an article requires more time, and skill. A pair of stringer tapes are cut to an approximate and longer length. The pair of stringer tapes are respectively stitched to a folded article and are cut to exact length. The two stringer tapes are then threaded through a slider, and finally end stops have to be mounted across both ends of the stringer tapes.
It is appreciated that it is quicker and easier to stitch the slide fastener of the present invention to an article than a conventional slide fastener.
The stringer tape 12 of the present invention may be secured to an article by sewing, heat sealing, adhesive means, etc. The article can be almost any article where a slide fastener is used.
Although it has been illustrated that only one slider is provided on a slide fastener of the present invention, it is understood that two or more sliders can be provided on a slide fastener for the purposes of engaging and disengaging the fastening elements on the slide fastener.
The foregoing is a description of a preferred embodiment of the invention which is given here by way of example only. The invention is not to be taken as limited to any of the specific features as described, but comprehends all such variations thereof as come within the scope of the appended claims.
The present invention relates to a slide fastener and in particular to a slide fastener formed by a single continuous stringer tape having engageable fastening elements secured along a longitudinal edge thereof. The present invention also relates to a method of forming a slide fastener from a single continuous stringer tape.
BACKGROUND OF THE INVENTION
A conventional slide fastener is made from two separate opposite stringers. Each stringer comprises a tape and a row of engageable fastening elements secured to a longitudinal inner edge of the tape. The rows of engageable fastening elements of the two opposite stringers are threaded through a slider for engaging and disengaging the fastening elements of the slide fastener. End stops are secured to each end to hold the two lengths of tape together. This form of slide fastener has various known disadvantages.
For example, in order to attach this kind of slide fastener to a cloth article, for example a pillow case, or a bag, one has to measure the length of fastener to be used, cut a pair of interengaged fastener tapes to a desired length, sew the fastener tapes to the cloth article, i.e.
pillow case, or bag, thread the two fasteners through a slider, and form end stop members at both ends of the slide fastener.
.
One disadvantage of this kind of slide fastener is that the fastener has to be cut at both ends. The two ends will tend to become frayed. End stop members have to be employed at both ends of the fastener to order to reinforce the end portions as well as to limit the sliding movement of the slider. Both ends of the fastener are therefore subject to being torn or ragged. The cutting of the fastener tapes results in significant wastage, and extra cost.
BRIEF SUMMARY OF THE INVENTION
The present invention provides an improved slide fastener to overcome the disadvantages of the aonventional slide fastener.
The present invention also provides a method of forming a slide fastener adapted to be secured onto an article, or the like in a more efficient way.
According to the present invention, there is provided a slide fastener comprising a single continuous piece of stringer tape having identical engageable fastening elements secured along one side thereof, said stringer tape being folded to form two stringer tape sections with said engageable fastening elements facing opposite to each other, and one folded section, said folded section defining an end stop disposed at one end of said slide fastener, and a slider for engaging and disengaging said oppositely facing fastening elements from said one end of said slide fastener to the other end thereof.
212~1~4 The slide fastener further comprises an end stop provided at the other end of said slide fastener.
The present invention also provides a method of forming a slide fastener from a single continuous piece of stringer tape having a row of engageable fastening elements provided along a longitudinal edge thereof.
The method comprises the steps of folding said single continuous piece of stringer tape to form two stringer tape sections with engageable fastening elements facing opposite to each other, and one folded section defining an end stop at one end of said slide fastener, threading said fastening elements on opposite stringer tape sections through a slider, and attaching an end stop at the free ends of the two stringer tape sections.
The method further comprises the step of cutting said stringer tape to exact length.
The present invention further provides a method of forming a slide fastener on an article, for example, of fabric material, such as a pillow case or a bag, the article having a first panel member, a second panel member, and a joining portion between said first and second panel members.
The method comprises the steps of supplying a single continuous piece of stringer tape, having engageable fastening elements provided along a longitudinal edge thereof, from a roll of stringer tape, securing said stringer tape onto said first panel member, continuously securing said stringer tape onto said joining portion between said first and second panel members, continuously securing said stringer tape onto said second panel member, cutting said secured stringer tape to exact length from said roll of stringer tape, folding said article along said joining portion to form two parallel stringer tape sections with respective engageable fastening elements facing opposite to each other, and one folded stringer tape section defining an end stop, threading said opposite fastening elements through a slider, and attaching an end stop across the free ends of the folded stringer tape.
The method further comprises the step of subsequently securing the bag to close the other two sides.
The present invention further provides a method of forming a slide fastener on an article wherein the article is a bag having a first panel member and a second panel member defining three closed sides and one open side.
The various features of novelty which characterize the invention are pointed out with more particularity in the claims annexed to and forming a part of this disclosure.
For a better understanding of the invention, its operating advantages and specific objects attained by its use, reference should be had to the accompanying drawings and descriptive matter in which there are illustrated and described preferred embodiments of the invention.
212~194 IN THE DRAWINGS
Fig. 1 is a fragmentary perspective view of a slide fastener illustrating an embodiment of the present invention;
Fig. 2 is an enlarged fragmentary perspective view of an embodiment of an engageable fastening elements of the slide fastener of Fig. l;
Fig. 3 is an illustrative diagram showing a pillow case having a slide fastener at an open side thereof;
Fig. 4 is an illustrative diagram showing a stringer tape being fed from a roll and sewn onto a panel member;
Fig. 5 shows the stringer tape being cut to exact length;
Fig. 6 shows the panel member being folded up and formed with two closed sides by means of stitching; and Fig. 7 shows a pillow case formed by flipping the pillow case of Fig. 6 inside out.
DESCRIPTION OF A SPECIFIC EMBODIMENT
Referring now in more detail to the drawings, Fig. 1 shows a slide fastener generally represented by reference numeral 10. The slide fastener 10 comprises a single continuous piece of stringer tape 12. A row of engageable fastening elements 14 are secured to one longitudinal edge of the stringer tape 12.
In the embodiment shown in Fig. 2, the engageable fastening elements 14 are in the form of loops 16 of a , longitudinally extending helical coil 18. The coil 18, being made of synthetic resin, or metal, or other materials, is threaded in and wound along a longitudinal edge of the stringer tape 12.
The loops 16 are the portions of the coil 18 extending from the edge of the tape 12.
Each loop 16 defines an engaging space 20 therein.
Enlarged upper and under head portions 22, 24 are provided on each loop 16 along a tangential side of the coil 18.
Each loop 16 is identical and symmetric. Each of the head portions 22, 24 is identical and the function of which will be described later in more detail.
The stringer tape 12 with the coil 18 can be continuously produced by a stringer tape manufacturing machine already known in the prior art.
Referring again to Fig. 1, it will be seen that the stringer tape 12 is folded at a certain point and forms two opposite stringer tape sections 26, 28 and a folded end 30.
The two stringer tape sections 26, 28 are of the same length and are disposed in such a manner that the fastening elements 14a, 14b of the two stringer tape sections 26, 28 are facing opposite to each other.
The opposite fastening elements 14a, 14b are threaded through a slider 32. The slider 32 is adapted to slide to and fro from the free ends 34 to the folded end 30 thereby 21291~4 engaging and disengaging the oppositely facing fastening elements 14a, 14b.
In the illustrated embodiment of the slide fastener 10, the fastening elements 14 are identical and symmetrical, and are capable of two way engagement so that the fastening elements 14a disposed along the stringer tape section 26 can be interengaged with the fastening elements 14b disposed along the opposite running stringer tape section 28.
According to the present embodiment, the fastening elements 14 are in the form of loops 16 each defining an engaging space 20 and having an enlarged upper and under engaging head portion 22, 24. When opposite fastening elements 14a, 14b are forced to engage to each other by the slider 32, the head portions 22, 24 of one row of fastening elements 14 are adapted to be received in and interengaged with corresponding spaces 20 between the opposite row of fastening elements 14 thereby interlocking the opposite fastening elements 14a, 14b of the two stringer tape sections 26, 28, together with one another.
The loops 16 are disposed in a spaced apart relationship with one another defining in between engaging spaces 20. The loops 16 are identical in dimension. The upper and under head portions 22, 24 on each of the loops 16 are also identical in dimension and symmetrical, and are adapted for two way interdigital engagement.
21291~4 -When one section of the stringer tape 12 is folded back on the other section, the loops on one section of the stringer tape 12 are adapted to interengage with engaging spaces 20 on the other section, and the head portions 22, 24 on one section of the stringer tape 12 are adapted to interlock with the head portions 22, 24 on the other section.
The stringer tape 12 is made of flexible materials, usually woven cloth, and the fastening elements 14 on the stringer tape 12 are made of synthetic resin. The end 30 is formed simply by folding the stringer tape 12 at a certain point. The folded end 30 defines an end stop for limiting the movement of the slider 32 in one direction. No further end stop attachment or cutting or stitching is required.
Another end stop 36 is provided at the free ends 34 of the two stringer tape sections 26, 28 of the slide fastener 10 so as to limit the movement of the slider 32 in the other direction. This end stop 36 may be in the form of a piece of fabric, or a clip of metal or plastic, or simply stitching mounted across the free ends 34 of the two stringer tape sections 26, 28 of the stringer tape 12.
Fig. 3 illustrates the use of the slide fastener 10 of the present invention on an article, which in this illustration is a pillow case 40, shown in phantom lines.
The pillow case 40 has a first panel member 42 and a second panel member 44 adapted to be folded and stitched 212~19~
.
together to define three closed ends 46, 48, 50 and one open end 52.
The single continuous piece of stringer tape 12 is preferably fed from a roll 54 of stringer tape having fastening elements 14 mounted along a longitudinal edge thereof. As illustrated in Fig. 4, the stringer tape 12 is supplied to a sewing machine 56 at which it is sewn onto the first and second panel members 42, 44.
The first and second panel members 42, 44 are initially unfolded. The single stringer tape 12 is sewh onto an inner surface of the first panel member 42, and continuously onto an inner surface of the second panel member 44 along an edge portion of the panel members 42, 44.
The stringer tape 12 is cut from the roll 54 of stringer tape 12 to an exact length, as shown in Fig. 5.
The first and second panel members 42, 44 are then folded up along a region joining the two panel members 42, 44, in a direction as shown by the arrow in Fig. 5, so that the inner surfaces of the first and second panel members 42, 44 are facing outwards. The first and second panel members 42, 44 are folded up to define the closed side 46 and the open side 52 of the pillow case 40. The other closed sides 48, 50 of the pillow case 40 are closed up by stitching, as illustrated in Fig. 6.
212919~
The folded and stitched first and second panel members 42, 44 are then flipped inside out to form a pillow case in Fig. 7.
It will be seen that the first stringer tape section 26 is disposed on the first panel member 42 and the second stringer tape section 28 is disposed on the second panel member 44. The folded end 30 of the stringer tape 12 so formed is disposed at the closed side 46 of the pillow case 40.
The fastening elements 14 are threaded into a slider 32 and an end stop 36 is provided, in this embodiment, at the free ends of the stringer tape 12 to limit the movement of the slider 32.
The folded end 30 defines an end stop at the other end of the slide fastener 10.
It is understood that the slide fastener 10 is formed on the pillow case 40 by having a single continuous piece of stringer tape 12 sewn along the inner surface of the pillow case 40.
The end stop 30 of the slide fastener 10 is formed simply by folding up the stringer tape 12 at a certain point. The end stop 30 does not require any additional end stop members, or clips, or stitching, as in a conventional slide fastener with two separate stringer tapes, which may easily become ragged or torn.
212gl94 Also, the end stop 30 does not have any metal or plastic end stop member or bulky stitching which may cause discomfort to a user.
The slide fastener 10 of the present invention is therefore more durable and safe to use.
The method of forming a slide fastener of the present invention and its advantages are described in more detail, in comparison with a conventional slide fastener.
The stringer tape 12 is preferably fed from a roll of stringer tape having fastening elements 14 mounted along a longitudinal edge thereof. The stringer tape 12 is supplied to a sewing machine at which it is sewn onto an article, for example, of cloth. After the stringer tape 12 is sewn onto the article, the stringer tape 12 is cut once only, exactly to length, from the roll.
The stringer tape 12, being sewn on the article, is then folded. The two free ends 34 are threaded through a slider 32, and end stops 30, 36 are formed.
It will be seen that only one cutting of the stringer tape is required in making a slide fastener of the present invention. This cutting of the stringer tape is carried out after the single continuous piece of stringer tape is sewn onto the article.
This is a significant improvement compared with making a conventional slide fastener from a pair of stringer tapes with opposite engaging fastening elements, in which cutting 212~194 of the pair of stringer tapes may be carried out at two different stages, namely before and after the stringer tapes are sewn onto an article.
However, in the present invention there need be no waste of tape materials in making slide fasteners. The stringer tape can be cut to exact length at the first and only cutting in most cases.
Furthermore, it takes fewer steps to secure, or stitch a slide fastener of the present invention to an article than a conventional slide fastener having two parallel stringer tapes and engaging opposite slide fasteners.
According to the present invention, a single continuous piece of stringer tape is secured, usually stitched continuously to an article and then cut to exact length.
The stringer tape and the article are then folded up to form two stringer tape sections. The two stringer tape sections are then threaded through a slider, and finally an end stop is mounted across the free ends of the two stringer tape sections.
To secure or stitch a conventional slide fastener to an article requires more time, and skill. A pair of stringer tapes are cut to an approximate and longer length. The pair of stringer tapes are respectively stitched to a folded article and are cut to exact length. The two stringer tapes are then threaded through a slider, and finally end stops have to be mounted across both ends of the stringer tapes.
It is appreciated that it is quicker and easier to stitch the slide fastener of the present invention to an article than a conventional slide fastener.
The stringer tape 12 of the present invention may be secured to an article by sewing, heat sealing, adhesive means, etc. The article can be almost any article where a slide fastener is used.
Although it has been illustrated that only one slider is provided on a slide fastener of the present invention, it is understood that two or more sliders can be provided on a slide fastener for the purposes of engaging and disengaging the fastening elements on the slide fastener.
The foregoing is a description of a preferred embodiment of the invention which is given here by way of example only. The invention is not to be taken as limited to any of the specific features as described, but comprehends all such variations thereof as come within the scope of the appended claims.
Claims (7)
1. A slide fastener comprising:
a single continuous piece of stringer tape;
identical engageable fastening elements secured along a longitudinal edge of said single piece of stringer tape, said fastening elements having two way engagement means adapted for interdigital interengagement;
said stringer tape being folded to form two stringer tape sections with said identical engageable fastening elements facing opposite to each other, and one folded section;
said folded section defining an end stop disposed at one end of said slide fastener; and slider means on said two stringer tape sections for engaging and disengaging said oppositely facing fastening elements from said one end of said slide fastener to another end thereof.
a single continuous piece of stringer tape;
identical engageable fastening elements secured along a longitudinal edge of said single piece of stringer tape, said fastening elements having two way engagement means adapted for interdigital interengagement;
said stringer tape being folded to form two stringer tape sections with said identical engageable fastening elements facing opposite to each other, and one folded section;
said folded section defining an end stop disposed at one end of said slide fastener; and slider means on said two stringer tape sections for engaging and disengaging said oppositely facing fastening elements from said one end of said slide fastener to another end thereof.
2. A slide fastener as claimed in claim 1 further comprising an end stop provided at said another end of said slide fastener.
3. A slide fastener as claimed in claim 1 wherein said fastening elements are in the forms of loops of a helical coil wound along a longitudinal edge of said stringer tape.
4. A slide fastener as claimed in claim 3 wherein said engagement means are in the form of identical and symmetrical upper and under head portions provided on each of said loops along a tangential side of said coil.
5. A method of forming a slide fastener from a single continuous piece of stringer tape having a row of engageable fastening elements provided along a longitudinal edge thereof, the method comprising the steps of:
(i) folding said single piece of stringer tape to form two parallel stringer tape sections with respective engageable fastening elements facing opposite to each other, and one folded stringer tape section;
(ii) forming an end stop at the folded section of said single piece of stringer tape between said two stringer tape sections;
(iii) threading said opposite fastening elements through slider means; and (iv) attaching an end stop across the free ends of the folded stringer tape.
(i) folding said single piece of stringer tape to form two parallel stringer tape sections with respective engageable fastening elements facing opposite to each other, and one folded stringer tape section;
(ii) forming an end stop at the folded section of said single piece of stringer tape between said two stringer tape sections;
(iii) threading said opposite fastening elements through slider means; and (iv) attaching an end stop across the free ends of the folded stringer tape.
6. A method of forming a slide fastener as claimed in claim 5 further comprising the step of cutting said single continuous piece of stringer tape to exact length after securing said stringer tape to an article.
7. A method of forming a slide fastener on an article, said article having a first panel member, a second panel member, and a joining portion between said first and second panel members, said method comprising the steps of:
(i) supplying a single continuous piece of stringer tape, having engageable fastening elements provided along a longitudinal edge thereof, from a roll of stringer tape;
(ii) securing said stringer tape onto said first panel member;
(iii) continuously securing said stringer tape onto said joining portion between said first and second panel members;
(iv) continuously securing said stringer tape onto said second panel member;
(v) cutting said secured stringer tape to exact length from said roll of stringer tape;
(vi) folding said article along said joining portion to form two parallel stringer tape sections with respective engageable fastening elements facing opposite to each other, and one folded stringer tape section defining an end stop;
(vii) threading said opposite fastening elements through slider means; and (viii) attaching an end stop across the free ends of the folded stringer tape.
(i) supplying a single continuous piece of stringer tape, having engageable fastening elements provided along a longitudinal edge thereof, from a roll of stringer tape;
(ii) securing said stringer tape onto said first panel member;
(iii) continuously securing said stringer tape onto said joining portion between said first and second panel members;
(iv) continuously securing said stringer tape onto said second panel member;
(v) cutting said secured stringer tape to exact length from said roll of stringer tape;
(vi) folding said article along said joining portion to form two parallel stringer tape sections with respective engageable fastening elements facing opposite to each other, and one folded stringer tape section defining an end stop;
(vii) threading said opposite fastening elements through slider means; and (viii) attaching an end stop across the free ends of the folded stringer tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002129194A CA2129194A1 (en) | 1994-07-29 | 1994-07-29 | Slide fastener, method of manufacture and article therefrom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002129194A CA2129194A1 (en) | 1994-07-29 | 1994-07-29 | Slide fastener, method of manufacture and article therefrom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2129194A1 true CA2129194A1 (en) | 1996-01-30 |
Family
ID=4154092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002129194A Abandoned CA2129194A1 (en) | 1994-07-29 | 1994-07-29 | Slide fastener, method of manufacture and article therefrom |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2129194A1 (en) |
-
1994
- 1994-07-29 CA CA002129194A patent/CA2129194A1/en not_active Abandoned
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |