EP1885211B1 - Fermeture a glissiere pouvant ceder facilement - Google Patents

Fermeture a glissiere pouvant ceder facilement Download PDF

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Publication number
EP1885211B1
EP1885211B1 EP20060726568 EP06726568A EP1885211B1 EP 1885211 B1 EP1885211 B1 EP 1885211B1 EP 20060726568 EP20060726568 EP 20060726568 EP 06726568 A EP06726568 A EP 06726568A EP 1885211 B1 EP1885211 B1 EP 1885211B1
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EP
European Patent Office
Prior art keywords
slide fastener
slider
elements
coupling elements
stringer
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.)
Active
Application number
EP20060726568
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German (de)
English (en)
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EP1885211A1 (fr
Inventor
Shigeyoshi c/o YKK Europe Ltd TAKASAWA
Mark c/o YKK Europe Ltd DAVIES
Shunji c/o YKK Europe Ltd AKASHI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YKK Corp
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YKK Corp
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Filing date
Publication date
Priority claimed from GBGB0506680.8A external-priority patent/GB0506680D0/en
Application filed by YKK Corp filed Critical YKK Corp
Priority to EP09003934A priority Critical patent/EP2095734B1/fr
Publication of EP1885211A1 publication Critical patent/EP1885211A1/fr
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Publication of EP1885211B1 publication Critical patent/EP1885211B1/fr
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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/24—Details
    • A44B19/38—Means at the end of stringer by which the slider can be freed from one stringer, e.g. stringers can be completely separated from each other
    • A44B19/384—Separable slide fasteners with quick opening devices
    • 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
    • A44B19/02—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
    • A44B19/06—Stringers arranged edge-to-edge when fastened, e.g. abutting stringers with substantially rectangular members having interlocking projections and pieces
    • 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

Definitions

  • This invention relates to a readily burstable slide fastener.
  • a readily burstable slide fastener for an inflatable device, such as a lifejacket or liferaft, and to an inflatable device including a readily burstable slide fastener.
  • Lifejackets are worn in a number of applications, to provide buoyancy to the person who is wearing the lifejacket.
  • a lifejacket may be worn by a person engaged in water sports or by a person travelling by sea, either for the duration of the journey or in the event of an emergency.
  • the buoyancy of a lifejacket is provided by a material of low density, such as pockets of air or blocks of expanded polystyrene.
  • the lifejacket needs to contain a sufficient volume of buoyant material which inevitably makes the lifejacket bulk. This bulkiness can hinder movement of the person wearing the lifejacket. Therefore, it is common to use inflatable lifejackets which are compact when deflated and which can be inflated when required. Similarly, it is known to provide inflatable liferafts which can be stored on-deck and inflated as they are thrown overboard.
  • FIG. 1 An example of an inflatable lifejacket is shown in Figure 1 .
  • the lifejacket 101 comprises a fabric outer skin 103 and an inner inflatable tube 105.
  • the fabric outer skin 103 is folded to form a front panel 107 and a back panel 109 which are detachably joined around the outer peripheral edge 111 of the lifejacket 101 by a hook-and-loop surface fastener 113, 115 (see insert). This forms a compact, relatively thin article which can be worn without hindering the movement of the user.
  • a canister of compressed gas (not shown) is triggered by pulling a cord 117 to inflate the inner tube 105 of the lifejacket 101.
  • the inner tube 105 inflates, it pushes against the front panel 107 and the back panel 109 of the outer skin 103, to force open the surface fastener 113, 115 which runs around the peripheral edge 111 of the lifejacket 101.
  • the surface fastener 113, 115 is open all the way along its length and the inflated inner tube 105 projects beyond the peripheral edge 111 of the lifejacket 101.
  • a disadvantage of using a hook-and-loop surface fastener to detachably join the front panel 107 and back panel 109 of the outer skin 103 is that each time the inner tube 105 is inflated and the hook-and-loop surface fastener 113, 115 is separated, the adhesive force between the two surface fasteners 113, 115 decreases as a result of wear and tear on the hooks and loops. Furthermore, as such lifejackets 101 are generally used in a marine environment, the hook-and-loop surface fastener often come into contact with water which can degrade the materials from which the surface fastener is made, thereby reducing the effectiveness of the hook-and-loop surface fastener over an extended period of time, requiring periodic replacement of the surface fastener.
  • a further disadvantage of using a surface fastener for this application is the danger which may occur when such lifejackets are used in freezing conditions where there is a possibility that water, which has sprayed onto the lifejacket, may freeze. If water freezes in the join of the surface fastener then this will prevent separation of the two surfaces.
  • a slide fastener such as a zip fastener.
  • the surface fastener cannot be simply replaced by a conventional slide fastener, as conventional slide fasteners cannot be burst open at a point along their length, unlike the way in which the surface fastener operates in a lifejacket.
  • GB-A-1480176 discloses a slide fastener having an emergency opening zone in a central portion of a string of coupling elements.
  • the emergency opening zone is bereft of coupling elements.
  • US-A-2875490 discloses a slide fastener having first stringer on which a slider is slidably mounted and a second stringer along which the slider is slidable. An upper portion of the second stringer is bereft of coupling elements.
  • Another aspect of the present invention provides a slide fastener as defined in claim 4.
  • FIG. 2 shows a slide fastener 1.
  • the slide fastener 1 is comprised of a first stringer 3, a second stringer 5 and a slider 19.
  • Each stringer 3,5 is comprised of a tape 4 and coupling elements 15.
  • the coupling elements 15 are mounted on opposing edges 17 of each tape 4.
  • the slider 19 is slidably mounted on the coupling elements 15 of the second stringer 5.
  • the slider 19 can slide along the coupling elements 15 between the retaining box 11 at the bottom end of the coupling elements 15 and an end stop 21 at the top end of the coupling elements 15.
  • the gap 25 serves as a weak point along the length of the slide fastener 1.
  • a conventional slide fastener is able to withstand forces which are applied in a direction perpendicular to the plane in which the tapes lie. When such a force is applied, opposed coupling elements remain engaged and the slide fastener does not burst, unless a strong force is applied.
  • the coupling elements 15 adjacent to the gap 25 are unable to withstand the force and these coupling elements 15 will disengage and the slide fastener will begin to unpeel along the length of the slide fastener 1.
  • the coupling elements 15 and end stop 21 of the second stringer 5 extend beyond the coupling elements 15 of the first stringer 3.
  • the number of coupling elements 15 removed from the first stringer 3 is such that when the slider 19 is at its uppermost position on the second stringer 5, abutting the end stop 21, part of the top coupling element 27 on the first stringer 3 is disposed in the slider 19.
  • this top coupling element 27 in the slider 19 prevents separation of the stringers 3, 5 at this position when the slide fastener 1 is closed with the slider 19 against the end stop 21.
  • This arrangement does not, however, prevent separation of the stringers 3, 5 when the slide fastener bursts open, and may also provide a weakened region for bursting of the slide fastener as is explained below.
  • the cord 31 is greater than the height of the slit, so that when the slider 19 is at its uppermost position, the cord 31 cannot move freely sideways out of the slider 19. However, the cord 31 is not so high such that the cord 31 cannot be pulled out of the slider 19 if a reasonable force is applied.
  • the coupling elements 15 of this slide fastener 1 are moulded plastic elements of the VISLON (trade mark) type marketed by the applicant. However, other coupling elements such as metal or coil elements may be used in place of this type of element.
  • the slide fastener 1 is fitted to the outer peripheral edge 111 of a lifejacket, as shown in Figure 6 , to replace the surface fastener which is shown in Figure 1 .
  • Each of the stringers 3, 5 is sewn or welded to one of the opposing edges of the front panel 107 and back panel 109.
  • the fastener extends almost completely around the peripheral edge 111, from points A to B shown in Figure 6 .
  • the bottom end 9, 13 of the slide fastener tapes 4 will be at point A and the upper ends 29, 32 of the tapes 4, at point B (or vice versa).
  • the slide fastener 1 can be attached to the covering of other inflatable devices in a similar manner as will be described further by way of example hereinafter.
  • the slider 19 is moved to the bottom end 13 of the second stringer 5 so that the slider 19 abuts the retaining box 11.
  • the insert pin 7 is inserted through the slider 19 into the retaining box 11.
  • the slider 19 is translated along the slide fastener 1 to the upper end 29 of the slide fastener 1, thereby engaging opposing coupling elements 15 as it moves along the slide fastener 1.
  • the slider 19 continues to engage opposing coupling elements 15 beyond the gap 25.
  • the cord 31, which is attached to the edge 17 of the first stringer 3, is located within the slider 19.
  • the cord 31 does not move freely sideways out of the slider 19, but will slip out when a predetermined force is applied. If part of the top coupling element 27 on the first stringer 3 is disposed in the slider 19, this top coupling element 27 serves to prevent separation of the stringers 3, 5.
  • the cord 31 may be thinned so that the cord 31 can move freely out of the slider 19 or there may be no cord.
  • the lifejacket 101' of Figure 6 When the lifejacket 101' of Figure 6 is inflated, as the inflatable tube expands, it exerts a force on the slide fastener 1 in a direction substantially perpendicular to the plane in which the tape elements 15 lie. When this force is exerted at the first weakened region 23 where there is a gap 25 in the coupling elements, those coupling elements 15 adjacent to the gap 25 in the slide fastener 1 will be pushed outwards and will disengage from each other, the remaining coupling elements 15 of the slide fastener 1 peeling apart all the way to the ends 9, 13, 29 of the slide fastener 1. Once the engaging elements 15 of the slide fastener have opened at the top 29 of the slide fastener 1, the cord 31 is forced out of the slider 19.
  • the cord will slip out of the slider 19. If, as mentioned above, part of the-top coupling element 27 on the first stringer 3 is disposed in the slider 19, this top coupling element 27 is pulled out of the slider 19 before the cord 31 is forced out of the slider 19.
  • the slide fastener 1 will open fully along its length when the inner tube of the lifejacket (or other inflatable device) is inflated.
  • the complete separation of the top end 32 of the first stringer 3 from the slider 19 has a further advantage that once the lifejacket has been deflated in preparation for subsequent use, the slider 19 is easily moved to the bottom end 13 of the second stringer 5, thereby making the slide fastener 1 reusable and speeding up the time it takes to recommission the lifejacket.
  • a lifejacket may have two or more weakened regions 23 in the form of gaps 25 along its length.
  • a lifejacket may have no gaps 25 along its length, but the peeling action may begin at the top end, where the slider 19 is located, by forcing the first stringer 3 away from second stringer 5 and the slider 19.
  • two slide fasteners 1 may be used.
  • the bottom ends of the fasteners may be located respectively at the point A and B, and the upper ends of the fasteners positioned adjacent one another on the neck region of the life jacket cover, point C in Figure 6 .
  • FIG 3 shows a slide fastener 1'.
  • the slide fastener 1' has the same overall structure as the slide fastener 1 of Figure 2 .
  • the difference between these two slide fasteners is that the slide fastener 1' of Figure 3 does not have a gap 25 at the first position 23, unlike the slide fastener 1 of Figure 2 .
  • the structure of such modified coupling elements 30 is as described in greater detail in the applicant's corresponding UK application number 0414935.7 , and as illustrated in Figures 4a and 4b , as described below.
  • the moulded plastics elements in standard (unmodified) form have a body which is moulded onto an edge of a fastener tape, a neck extending from the body and a head on the outer end of the neck.
  • the neck forms a narrow or waisted region between the head and body.
  • the head of a coupling element fits between the necks of two adjacent coupling elements on the opposite fastener tape to prevent separation of the coupled elements in the plane of the elements.
  • a shoulder is provided adjacent the element neck and cooperates with a groove in the head of an opposed element to limit out of plane movement of the fastener heads.
  • Figures 4a and 4b show modified moulded coupling elements 30.
  • the upper body head 38 of the modified coupling element 30 will rest on the shoulder 46 of an adjacent element 30, thus resisting any inward force (that is downwards as seen in Figure 4a ).
  • the nose 44 passes between the shoulders 46 of the opposite coupling elements 30, and so there is less resistance to an outward force (upwards as seen in Figure 4a ).
  • the nose portion 44 will not engage an opposed coupling element 30.
  • the nose 44 sits between the shoulders 46 and limits the flexing of the slide fastener chain if it is curled or rolled up, about a line in the fastener plane transverse to the coupling elements 15, 30.
  • the line of engaged elements can be flexed more easily, in one direction only, at the modified coupling elements 30, providing a point of weakness at which the zip fastener can be peeled open while maintaining a uniform appearance for the slide fastener 1' when viewed from one direction.
  • the slide fastener 1' can be opened and closed in the normal manner using a slider.
  • the head 38 is shaped like the nose 44.
  • Such coupling elements would flex equally easily in both directions.
  • modified elements 30 will depend on the desired force to be applied to open the fastener. Preferably a run of at least 3 adjacent elements is provided, one on one tape 4, and two on the other tape 4, and more preferably at least 4 elements 30.
  • the modified coupling elements 30 may also be provided in combination with a gap 25 in the elements.
  • a gap 25 is formed by omitting or removing elements 15 as in the configuration of Figure 2 , and the elements immediately adjacent the ends of the gap 25, on one or both tapes 4, are modified elements 30.
  • FIGs 16 and 18 show slide fasteners 1", 1"” according to embodiments of this invention.
  • the slide fasteners 1", 1"” have the same overall structure as the slide fastener 1 of Figure 2 .
  • the difference between the two slide fasteners 1", 1"" and the slide fastener 1 of Figure 2 is that the slide fasteners 1", 1"" of Figure 16 and 18 have guide elements 33, 33' and transition elements 34 in addition to the coupling elements 15 which run along the bulk of the edges 17 of the tapes 4.
  • the slide fastener 1" of Figure 16 has guide elements 33 at the first position 23 running along the edges 17 of the tapes 4 (where there is a gap 25 in the coupling elements 15 in Figure 2 ) and at the top end 24 of the coupling elements 15 distal to the insert pin 7 (where there are no coupling elements at the top end 24 of the coupling elements in Figure 2 ); and a transition element 34 between the lowest of the guide elements 33 and the coupling elements 15 on each tape 4 at each of the positions 23, 24, as is explained below.
  • the guide elements 33 of Figure 16 have no neck or head, i.e., they are comprised only of a body having a rectangular shape in plan view. As the guide elements 33 have no neck or head, guide elements 33 cannot be engaged with opposed guide elements 33 or coupling elements 15. In the embodiment of Figure 16 there are 12 guide elements 33 on the first stringer 3 and 13 opposed guide elements 33 on the second stringer 5.
  • the slide fastener 1"" of Figure 18 has guide elements 33' having a triangular head 39 so that opposed guide elements 33' fit between each other without engaging with each other.
  • An advantage of these guide elements 33' over the guide elements 33 of Figure 16 is that the gap between opposed elements 33' is reduced, thereby impeding insertion of objects, such as fingers, between opposed elements 33', which may lead to injury or premature opening of the slide fastener at the first position 23. Also, during the manufacturing process the guide elements will help prevent false detection of a gap in a run of elements, which is usually used to detect the end of a chain or stringer to signal an operation to cut the tape, for example.
  • these guide elements 33, 33' is to guide the slider 19 as it is moved along those portions of the slide fastener 1", 1"" where the tapes 4 do not engage.
  • the slider 19 is moved along the slide fastener 1", 1"" from the coupling elements 15 below the first position 23 to the coupling elements 15 above the first position 23, the slider 19 does not become derailed from the tapes 4 as it is moved through this first position 23 and easily re-engages with the coupling elements 15 above the first position 23.
  • each of the tapes 4 there are rectangular guide elements 33 on each of the tapes 4 at the top 24 of the string of coupling elements 15, in the region of the end stop 21.
  • the location of the guide element 33 at the top of the first stringer 3 is such that when the slider 19 is at its uppermost position on the second stringer 5, abutting the end stop 21, part of the top guide element 28 on the first stringer 3 is disposed in the slider 19.
  • coupling elements 15 are used. Furthermore, using guide elements 33 at the top end 24 of the stringers 3, 5 in place of coupling elements 15 makes it easier for the first stringer 3 to be released from the slider 19, as opposed guide elements 33 on the stringers 3, 5 do not engage with each other, hence, there is less resistance to movement of the first stringer 3 out of the slider 19 than there would be if coupling elements 15 are used.
  • transition elements 34 at two positions along the length of the slide fastener 1", namely between the lowest of the guide elements 33 and the coupling elements 15 on each tape 4 at each of the first position 23 and the top end 24 of the coupling elements 15.
  • transition elements 34 at the top end 24 of the coupling elements 15.
  • a conventional slider 19 is made up of an upper blade (on which mounting posts are located) and a lower blade, which are connected by a guide post.
  • Guide flanges extend from each of the longitudinal edges of the upper and lower blades to define guide channels between the guide flanges and the guide post.
  • the dimensions of the guide channels are matched to the dimensions of the coupling elements; the cross sectional area of a guide channels is such that coupling elements fit snugly therein, as is well known in the art.
  • the portion of the stringers in the slider defines a Y-shape, i.e., the stringers are engaged below the slider and disengaged above the slider.
  • the engaged coupling elements entering the slider are disengaged as the stringers are drawn into the guide channels and beyond the guide post.
  • the difference between the rectangular guide elements 33 and the coupling elements 15 is that the coupling elements 15 have a neck and a head, whereas guide elements 33 only have a body.
  • the angle between the stringers above the slider is likely to be less than the angle between the stringers when the slider moves along coupling elements 15.
  • This reduced angle means that the coupling elements 15 approaching the guide post from below are less pealed apart than they would be if there were coupling elements 15 in the guide channels adjacent to the guide post. Therefore, when the slider is moved downwards from the guide elements 33 to the coupling elements 15 therebelow, the guide post of the slider may not clear the end of the coupling element 15 and may become caught in the neck of the coupling element 15 immediately below the guide elements 33, which prevents the slider from being pulled further down the slide fastener.
  • transition elements 34 on the slide fasteners 1", 1"" of Figures 16 and 18 which enable smooth downward movement of the slider along the slide fastener 1", 1"".
  • the transition elements provide a cam surface facing the slider guide post, over which the guide post can slide to prevent fouling of the guide post on the element.
  • the transition elements 34 have no projections on the side 35 which faces the top end 24 of the slide fastener 1", 1"", and present a genarally convex surface towards the guide post so that when the slider 19 is moved down the slide fastener 1", 1"" the guide post of the slider 19 will come into contact with the side 35 of the transition element 34 which faces the top end 24 of the slide fastener 1", 1"" and will push the transition element 34 outwards to pass the transition element 34.
  • the slider 19 is not caught on the transition elements 34 and the slider 19 can easily be pushed beyond the transition elements 34 to facilitate continuous disengagement of the slide fastener 1", 1"".
  • the end portion 37 of the side 35 which faces the top end 24 of the slide fastener 1", 1"" is angled downwards, away from the top end 24 of the slide fastener 1", 1"", to give the side a convex shape as shown in Figure 17 , to ease passage of the guide post of the slider 19 past the transition element 34, to encourage separation of the stringers 3, 5 at this point.
  • the shape of the transition elements can be varied to suit the adjacent coupling elements and the transition elements on opposed tapes need not be identical
  • transition elements 34 there may be guide elements 33, 33' and/or transition elements 34 at only one of the first position 23 and the top end 24 of the tape 4.
  • transition elements 34 may be mounted on the slide fastener 1 of Figure 2 on each of the stringers 3, 5 in place of the coupling elements 15 which are immediately below the gap 25.
  • slide fasteners 1", 1"" of Figures 16 and 18 can be attached to the lifejacket 101' in place of the slide fastener 1 of Figure 2 .
  • a reinforcement such as flap 51 may be placed over the gap 25 of the slide fastener 1 of Figure 2 , over the modified elements 30 of the slide fastener 1' of Figure 3 or over the first position 23 of the slide fastener 1", 1"" of Figures 16 and 18 .
  • This flap 51 helps to impede premature bursting of the slide fastener by increasing the force required to disengage the elements adjacent the modified or missing elements and by protecting this area from fouling by other objects which may lead to premature bursting.
  • a flap 53 may be placed at the top end of the slide fastener 1 to prevent premature bursting of the slide fastener where the slider 19 is located.
  • flaps 51, 53 may be attached by use of a hook-and-loop surface fastener to each of the tapes 4 as shown in Figure 5 .
  • the tapes 51, 53 may be attached to the front and back panels 107, 109 of the lifejacket 101', laying across the slide fastener 1, 1', 1", 1"" at the region 23 or the slider 19 when in the closed position, to inhibit separation of the slide fastener 1, 1', 1", 1"” at this point.
  • the tube 105 inflates, the expansion of the tube overcomes the resistance of the hook and loop fastener as well as bursting the slide fastener at the weakened region 23 and/or slider 19.
  • other types of reinforcement such weakened region 23 and/or slider 19.
  • Such links include a link formed by partially melting adjacent areas of the stringer tapes 4, to join the stringer tapes 4; a link comprising a piece of tape such as taffeta tape, by gluing, sewing or welding to bridge the gap between the stringer tapes 4; a link comprising a snap fastener having interlocking first and second parts, e.g. male and female parts, where the direction of engagement of the parts is either in the plane in which the tapes lie or perpendicular thereto.
  • adhesive tape may be used to cover these portions.
  • the reinforcement should be reusable.
  • FIG. 19 A further arrangement for preventing premature separation of the slide fastener is shown in Figures 19 and 20 .
  • the slide fastener 1""' of these Figures is the same as the slide fastener 1"" of Figure 18 , save for the use of locking elements 41 above and below the guide elements 33' at the first position 23.
  • Each locking element 41 has the general form of two joined elements (having two heads), such that relative movement between the two elements forming the locking element 41 is restricted.
  • the shape of the heads of the elements is different on each side of the slide fastener 1""'.
  • Figure 20 is a rear view of the slide fastener 1""', where the rear portion of the heads of the locking elements 41 has a head and neck similar to the shape of coupling element 15, so that opposed locking elements 41 can be engaged.
  • the front of the locking element 41 has a triangular shape, similar to the shape of guide elements 33'. These front portions of the heads of the locking element 41 do not interengage.
  • the heads of the locking element 41 have different front and rear portions to prevent out-of-plane disengagement of the locking element 41.
  • both the front and rear portions of the heads of the locking element may be of the same engaging type, the locking element also comprising shoulders to prevent out-of-plane disengagement.
  • the locking element 41 can be closed and opened in the normal manner by moving the slider 19 along the element of the tapes 3, 5 when closing and opening the slider fastener 1""', although an increased force is required to close and open the locking elements 41.
  • the slide fastener of Figures 19 and 20 When the slide fastener of Figures 19 and 20 is closed as shown in these Figures, it can be burst open by applying a force to the first position 23 which is sufficiently strong to disengage the locking elements 41. In this manner, the slide fastener 1"'" of Figures 19 and 20 can resist premature opening of the slide fastener.
  • FIG 7 shows a life raft 151 having a clamshell type cover 153 formed of two halves 155, 157 joined by a slide fastener 1-1""' of Figures 2 , 3 , 5 or 15 to 20 .
  • a reinforcement 51 is attached to the cover halves 155, 157, to reinforce a weakened region 23 (hidden from view) in the fastener 1-1""'.
  • the life raft 151 When the life raft 151 is thrown into water, the life raft inflates automatically, to undo or break the reinforcement 151 and burst the zip fastener 1-1""' at the weakened region 23.
  • Figure 8 shows a temporary end stop 61 for the slide fastener of Figures 2 , 3 , 5 or 16 .
  • the temporary end stop 61 has pins 63 which extend outwards from the tape 4 to impede the slider 19 from moving further up the coupling elements 15 of the slide fastener 1, 1', 1".
  • the pins 63 project above and below the tape 4.
  • the pins 63 are arranged such that the slider 19 moves past the pins 63 if an increased force is applied to the slider 19.
  • the slider fastener 1, 1', 1" is closed as normal by moving the slider 19 from the bottom 9, 13 of the slide fastener 1, 1', 1" towards the top end 29 of the slide fastener 1, 1', 1" to its uppermost position below the pins 63.
  • the slide fastener 1, 1', 1" peels apart from the gap 25 or modified coupling elements 30 and when the opening of the slide fastener 1, 1', 1 " reaches the slider 19, the force of the inflating tube pushes the slider 19 past the pins 63 so that the slider 19 travels to the end stop 21 at the top of the chain of coupling elements 15 on the second stringer 5, and the first stringer 3 disengages from the slider 19, thereby opening the slide fastener 1,1', 1" fully along its length.
  • Other temporary end stops may be used, such as a deformable end stop, as is known in the art.
  • a temporary end stop can be additionally or alternatively mounted on the second stringer at a similar position to the temporary end stop 61 shown in Figure 8 and would have the same effect.
  • Figure 9 shows locking elements 67 which can be fitted towards the upper end of the chain of coupling elements 15.
  • the locking elements 67 are fitted below the top of the chain of coupling elements 15, i.e., there are coupling elements 15 above the locking elements 67.
  • Figures 10 and 11 show modified insert pins 7',7" which are fitted at the lower end 9 of the first stringer 3.
  • the insert pin 7',7" is modified so that when the slide fastener 1, 1', 1" bursts along its length and the opening in the slide fastener 1, 1', 1" reaches the bottom 9 of the slide fastener 1, 1', 1", the insert pin 7',7" detaches easily from the retaining box 11.
  • the insert pin 7' of Figure 10 has a rounded lower outer corner 69 and a cut out inner edge 71, i.e. the edge which faces the tape 4 of the first stringer 3.
  • a top end 73 of the insert pin 7' moves away from the box pin 75 which is attached to the retaining box 11, i.e., the top 73 of the insert pin 7' moves to the left, and the curved lower outer corner 69 in combination with the cut out 71 allow the insert pin 7' to move out of the retaining box 11 easily.
  • the insert pin 7" is shorter than the insert pin 7' of Figure 10 and this shortening has a similar effect to the rounding of the lower outer corner 69 of the insert pin of Figure 10 , i.e., when the slide fastener 1, 1', 1" bursts the insert pin 7" comes out of the retaining box 11 easily.
  • FIG 15 is a schematic cross sectional view of a second type of slide fastener 1"'.
  • the slide fastener 1'" is comprised of interlocking male 201 and female 203 members which extend continuously out of the page.
  • the male member 201 has an arrow-shaped head 205.
  • the head 207 of the female member 203 has a rectangular profile, with an opening 209 in the centre of the outer wall 211 which faces the male member 201.
  • the height h of the opening 209 is less than the height H of the arrow shaped head 205 of the male member 201.
  • the head 205 of the male member 201 and/or the outer wall 211 are resiliently deformable so that the arrow-shaped head 205 can be inserted through the opening 209 into the cavity 213 of the head 207 of the female member 203.
  • the head 205 of the male member 201 is prevented from exiting the cavity 213 by the outer wall 211.
  • the slide fastener 1'" is closed using a slider (not shown) which moves along the male 201 and female 203 members.
  • a slider (not shown) which moves along the male 201 and female 203 members.
  • the slider moves along the members 201, 203 in one direction it pushes the arrow-shaped head 205 of the male member 201 through the opening 209 into the head 207 of the female member 203 to engage the male 201 and female 203 members, and as the slider moves in the other direction is disengages the members 201, 203 by easing the arrow-shaped head 205 through the opening 209 outwards.
  • the slide fastener 1'" is modified at a first position so that the arrow-shaped head 205 can be pulled out of the female member 203.
  • the slide fastener 1"' is modified by reducing the height H of the head 205 and/or by increasing the height h of the opening 209. Such modifications may be made at more than one position along the slide fastener 1"'.
  • the slide fastener 1"' is modified at a second position such that the height of one of the male 201 or female 203 members is reduced so that the slider disengages from the male 201 or female 203 member respectively.
  • Other slide fasteners having continuously extending members may be used, for example, a slide fastener having a male member with a double head and a female member with a head having an 8-shaped profile with openings in the inner wall and an outer wall.
  • the slide fasteners 1-1""' described above are ideally suited for inflatable devices such as the lifejacket 101' of Figure 6 or the liferaft 151 of Figure 7 .
  • they can also be used in other applications such as on tent openings ( Figure 12 ), to join partition walls ( Figure 13 ), on sleeping bags ( Figure 14 ) and on other apparatus which have a join which may on occasion need to be burst open.
  • modified coupling elements 30, gaps 25, flaps 51, 53 and end stops 63 will depend on a number of factors including the application, the type, size and material from which the slide fastener is made, the force applied to burst the slide fastener etc., and that the skilled person will be able to determine a configuration suitable for each application, to provide a balance between ensuring that the fastener bursts when required but does not open prematurely.

Landscapes

  • Slide Fasteners (AREA)

Abstract

Cette invention concerne une fermeture (1) pour un dispositif gonflable, tel qu'un gilet de sauvetage (101'), constituée d'une première bande (3), d'une seconde bande (5) et d'un curseur (19) monté de manière à glisser sur la deuxième bande (5). Au niveau d'une région affaiblie (23) le long de la fermeture à glissière (1), des éléments de couplage (15) sont omis de chacune des bandes (3, 5) de manière que lorsqu'un effort d'éclatement est appliqué à cette région (23), les éléments de couplage (15) adjacents se désengagent les uns des autres. Des éléments de couplage (15) sont omis au niveau du sommet de la première bande (3) de manière que lorsque le curseur (19) se trouve au sommet des éléments (15) de la seconde bande (5), la première bande (3) peut se désengager du curseur (19). Lorsque la fermeture à glissière (1) est ajustée sur un gilet de sauvetage (101' ), les bandes (3, 5) se séparent complètement lorsque le gilet de sauvetage gonfle.

Claims (4)

  1. Fermeture à glissière à ouverture facile (1", 1"" 1""') comprenant:
    une première bande d'accrochage (3),
    une deuxième bande d'accrochage (5), et
    un curseur (19),
    chaque bande d'accrochage (3, 5) étant constituée d'une bande (4) ainsi que d'éléments d'accouplement (15) et d'un ou de plusieurs éléments de transition (34) montés sur un bord (17) de la bande (4), l'élément de transition ou chaque éléments de transition (34) étant disposé au sommet d'une rangée d'éléments d'accouplement (15), le curseur (19) étant monté de manière à pouvoir glisser sur la deuxième bande d'accrochage (5) et pouvant glisser le long des éléments d'accouplement (15) des première et deuxième bandes d'accrochage (3; 5) pour engager les éléments d'accouplement (15) lors de son déplacement du bas de la fermeture à glissière (1", 1"" 1""') vers le haut (24) de la fermeture à glissière (1", 1"" 1""'), un côté (35) de l'élément de transition (34) qui fait face au sommet (24) de la fermeture à glissière (1", 1"" 1""') présentant une surface au curseur pour dévier l'élément de transition (34) de la fermeture à glissière à l'écart d'un pilier de guidage du curseur (19) lorsque le curseur (19) entre en contact avec l'élément de transition de la fermeture à glissière (34) lorsque le curseur (19) est déplacé vers le bas de la fermeture à glissière (1", 1'"' 1""').
  2. Fermeture à glissière (1", 1"" 1""') selon la revendication 1, dans laquelle le côté (35) de l'élément de transition qui fait face au sommet (24) de ladite fermeture à glissière (1", 1"" 1""') n'a pas de saillies.
  3. Fermeture à glissière (1", 1"" 1""') selon la revendication 1, dans laquelle le côté (35) de l'élément de transition qui fait face au sommet (24) est incliné vers le bas, à l'écart du sommet (24) de ladite fermeture à glissière (1", 1"" 1"'").
  4. Fermeture à glissière (1", 1"", 1""') selon la revendication 1 ou 2, dans laquelle le côté (35) de l'élément de transition qui fait face au sommet (24) de ladite fermeture à glissière (1", 1"" 1""') a une forme convexe.
EP20060726568 2005-04-01 2006-03-31 Fermeture a glissiere pouvant ceder facilement Active EP1885211B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09003934A EP2095734B1 (fr) 2005-04-01 2006-03-31 Fermeture a glissiere pouvant ceder facilement

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB0506680.8A GB0506680D0 (en) 2005-04-01 2005-04-01 A readily burstable slide fastener
GBGB0521494.5A GB0521494D0 (en) 2005-04-01 2005-10-21 A readily burstable slide fastener
PCT/GB2006/001161 WO2006103438A1 (fr) 2005-04-01 2006-03-31 Fermeture a glissiere pouvant ceder facilement

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP09003934A Division EP2095734B1 (fr) 2005-04-01 2006-03-31 Fermeture a glissiere pouvant ceder facilement
EP09003934.8 Division-Into 2009-03-19

Publications (2)

Publication Number Publication Date
EP1885211A1 EP1885211A1 (fr) 2008-02-13
EP1885211B1 true EP1885211B1 (fr) 2011-10-26

Family

ID=36589030

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060726568 Active EP1885211B1 (fr) 2005-04-01 2006-03-31 Fermeture a glissiere pouvant ceder facilement

Country Status (3)

Country Link
EP (1) EP1885211B1 (fr)
KR (1) KR100925106B1 (fr)
WO (1) WO2006103438A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009028131A (ja) * 2007-07-25 2009-02-12 Ykk Corp スライドファスナー及び車両用シート
KR101152149B1 (ko) 2010-05-26 2012-06-15 김영수 지퍼용 파스너 결합장치
WO2012086077A1 (fr) * 2010-12-24 2012-06-28 Ykk株式会社 Fermeture à glissière
US9944028B1 (en) 2013-10-24 2018-04-17 Ideal Fastener Corporation Methods for manufacturing slide fastener with overmolded components
US20160081437A1 (en) * 2014-09-24 2016-03-24 Ideal Fastener Corporation Breakaway slide fastener for large-scale applications and methods for using same
US10925354B1 (en) 2018-05-17 2021-02-23 Ideal Fastener Corporation Methods for preparing a slide fastener for operational use on an article
GB2596589A (en) * 2020-07-03 2022-01-05 Ykk Europe Ltd Slide fastener

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE497271A (fr) * 1949-08-04
GB678755A (en) * 1950-05-02 1952-09-10 Rfd Co Ltd Improvements in means for packing inflatable dinghies and other pneumatic equipment, parachutes and other objects
US2875490A (en) * 1952-03-14 1959-03-03 Coats & Clark Quick separation slide fastener and slider stop for the same
US2785490A (en) * 1956-01-18 1957-03-19 Robert J Fabry Picture frame
JPS5620843B2 (fr) * 1974-10-22 1981-05-15
GB0414935D0 (en) * 2004-07-02 2004-08-04 Ykk Europ Ltd Zip fastener with emergency opening facility
JP5039556B2 (ja) * 2004-10-25 2012-10-03 ゴア エンタープライズ ホールディングス，インコーポレイティド 織物または他の材料との間のシールを形成する装置

Also Published As

Publication number Publication date
KR100925106B1 (ko) 2009-11-05
WO2006103438A1 (fr) 2006-10-05
WO2006103438A8 (fr) 2010-09-30
KR20070112825A (ko) 2007-11-27
EP1885211A1 (fr) 2008-02-13

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