EP1020132B1 - Method of removing a pull tab from a slide fastener - Google Patents
Method of removing a pull tab from a slide fastener Download PDFInfo
- Publication number
- EP1020132B1 EP1020132B1 EP20000300127 EP00300127A EP1020132B1 EP 1020132 B1 EP1020132 B1 EP 1020132B1 EP 20000300127 EP20000300127 EP 20000300127 EP 00300127 A EP00300127 A EP 00300127A EP 1020132 B1 EP1020132 B1 EP 1020132B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pull tab
- gripping portion
- slider
- spindle
- collar
- 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.)
- Expired - Lifetime
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Images
Classifications
-
- 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
- A44B19/262—Pull members; Ornamental attachments for sliders
Description
- The present invention relates to a method of removing a pull tab from slider of a slide fastener.
- US-A-2 280 999 describes a detachable pull tab which can be attached to front or reverse sides of a slide fastener for use in a reversible garment. In one construction the pull tab has springy, parallel arms with projections at their ends which engage in the mounting lug on the slider. A band is slid along the arms to hold the ends together to engage the lug, and slid back to allow the arms to spring apart and release the projections from the lug. In another embodiment, the pull tab is in two parts which pivot relative to each other, scissors-like to enable projections on each part to engage and disengage from the lug.
- EP-A-090 370 describes a detachable pull tab with a C-shaped neck which embraces a connector which is pivotally attached to the slider body. A spring biased arm closes the mouth of the C-shaped neck to releasably attach the pull tab to the connector.
- GB-A-2 190 706 describes a pull tab with a mounting loop formed of a flexible U-shaped arm. A free end of the arm is releasably attached to the pull tab body by a locking device.
- All these prior art devices are concerned with providing a detachable but re-usable pull tab and are relatively complicated and hence are expensive to produce.
- EP-A-390 186 describes a provisional pull tab which is attached to a slider for use during the manufacturing finishing process, when the fastener stringers are slid through a slider of the automatic type, and when the slider is slid up and down the stringers to ensure that the fastener operates properly. On completion of the manufacturing and inspection processes the provisional pull tab is discarded, and a commercial pull tab, suiting a particular customers requirements, is attached. In EP A 390 186 the provisional pull tab includes a frangible region in the collar portion which encircles the mounting lug on the slider body. The frangible region is formed by providing a notch or a through hole in the collar portion or by making the collar portion of brittle material. The provisional pull tab can then be removed by twisting the pull tab relative to the slider, to break the collar in the frangible region and so freeing it from the mounting lug.
- A drawback of this arrangement is that substantial force may still be required to break the collar, and so the slider must be firmly gripped as the pull tab is twisted.
- There are other situations in which a detachable pull tab is required. In some cases, the customer does not want a pull tab left on the slider after it is used: for example after fitting a car seat cover with slide fasteners, it is desirable to remove the pull tab to prevent interference by children, or to ensure that a locking type slider is not inadvertently released by vibration of the pull tab, etc.
- The present invention provides a method of removing a pull tab from a slider of a slide fastener, as set forth in claim 1.
- A gap is formed between the free end of the spindle and the remainder of the collar or the gripping portion.
- Because the spindle is supported at only one end, the pull tab can be deformed by twisting the gripping portion relative to the spindle, opening up the gap to allow the pull tab to be removed from the slider. Deforming the collar in this way will generally require less force than breaking a frangible region. Thus, this detachable pull tab is particularly suited for cases when the pull tab is to be removed from the slider after the slide fastener has been put in use.
- The invention will be further described by way of example with reference to the accompanying drawings, in which
- Figure 1 is a perspective view of a detachable pull tab used in an embodiment of the present invention;
- Figure 2 is a schematic, perspective, exploded view of a zip fastener incorporating the pull tab of Figure 1;
- Figure 2a illustrates the pull tab of Figure 1 in a deformed condition, and
- Figure 3 to illustrates another embodiment of a detachable pull tab for use in the invention.
-
- Figure 1 shows a
detachable pull tab 2 for use in a slide fastener such as the zip fastener 4 illustrated schematically in Figure 2. In this example, thepull tab 2 is die cast from soft metal, such as zinc, aluminium or an alloy, but it may be made by stamping, or of plastics by injection moulding for example. Thepull tab 2 has agripping portion 6 which, in use, is gripped by the user, and acollar 8 which attaches thepull tab 2 to aslider 10 of a fastener 4 as illustrated in Figure 2. Thecollar 8 defines with thegripping portion 6 anaperture 12. Thecollar 8 has twolegs gripping part 6, and aspindle 18 which is integrally formed on thefree end 20 of oneleg 14 and extends towards theother leg 16. Thespindle 18 is not joined to theother leg 16 so asmall gap 21 is formed between thefree end 22 of thespindle 18 and theleg 16. - Figure 2 shows schematically a zip fastener 4. The construction of such zip fasteners is well known. In this example the
slider 10 incorporates an automatic locking mechanism. Alocking member 24 is pivotally mounted between two lugs 26 (only one is seen in the drawing) and has atooth 28 which extends through anaperture 29 in thetop plate 30 of the slider to engageelements 32 of the zip fastener. Aspring 33 is provided between thelocking member 24 and acover 36 to bias thetooth 28 into engagement with theelements 32. The structure of such locking mechanisms is well known. More complex arrangements are described for example in EP-A-390 186. - The
pull tab spindle 18 is positioned in themouth 34 of thelocking member 24 and held in place bycover 36, a pin 38 extending throughapertures 40 in thecover 36, thelugs 26 andlocking member 24. Thecover 36 is pinched at itsother end 42 to grip amounting block 44. In use, as thepull tab 2 is pulled, thespindle 18 pivots thelocking member 24 to release thetooth 28 from theelements 32 and the slider is slid along the fastener 4. - When the user wishes to detach the
pull tab 2, the grippingportion 6 is simply twisted relative to theslider 10. Thespindle 18 is held by thelocking member 24 andcover 36, and so theleg 14 twists about its length, as illustrated in Figure 2a. Thegap 21 is opened so that thespindle 18 can be slid from within thecover 36, and thepull tab 2 detached from theslider 10. - Figure 3 illustrates another embodiment. Here the
gap 21 is provided adjacent thegripping portion 6. Thecollar 8 is continuous and extends from oneend 46 integral with the grippingportion 6, to afree end 48 which is spaced from the grippingportion 6 by thegap 21. Thespindle 18 is defined by the mid portion of thecollar 8, between theends collar 8 is arcuate so that as thegripping part 6 is rotated, causing the leg portion 14' to twist and open thegap 21, thepull tab 2 can be manipulated to feed the free end of thecollar 8 through thecover 36. - It is preferred that the
gap 21 is small enough, in the undeformed pull tab, to prevent inadvertent detaching from the slider 4, and the gap could be formed by a slit or cut incollar 8 or at the junction with the gripping portion. By providing agap 21, twisting of the gripping portion provides substantial torque about theleg 14, 14', twisting it easily to open thegap 21, without placing great force on the slider itself. - It will be appreciated that the pull tab may have a variety of shapes. Figure 3 illustrates that the gripping portion may have a central aperture, for example. It could be elongate, circular, etc. The material of the pull tab and the shape are selected so that the pull tab is sufficiently strong to be used to close the fastener, but the
leg 14 orcollar 8 can be deformed to open thegap 21 and remove the pull tab from the slider.
Claims (4)
- A method of removing a pull tab (4) from a slider (10) of a slide fastener (4), the pull tab (2) comprising a gripping portion (6) and a collar (8) on the gripping portion (6), the collar defining a spindle (18) which mounts the pull tab (2) on the slider (10) and the spindle (18) being supported at only one end (20) on the gripping portion (6), the method comprising
twisting the gripping portion (6) relative to the slider to deform the pull tab (2) to open a gap (21) between the unsupported end of the spindle (18) and the gripping portion (6), detaching the pull tab (4) from the slider (10) by means of the gap (21) and discarding the pull tab (4). - A method as claimed in claim 1, wherein the spindle (18) is supported at an end thereof by a leg (14, 14') which extends from the gripping portion (6).
- A method as claimed in claim 1, wherein the collar (8) comprises a first leg (14) which extends from the gripping portion (6) and supports the spindle at a distal end (20) of the leg (14), and a second leg (16) which extends from the gripping portion (6) to a position adjacent the free end (22) of the spindle (18).
- A method as claimed in claim 1, wherein the collar (8) is continuous from one end (46) attached to the gripping portion (6) to another end (48) which is adjacent to, but detached from, the gripping portion (6).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9900623A GB2345726A (en) | 1999-01-12 | 1999-01-12 | Detachable pull tab |
GB9900623 | 1999-01-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1020132A1 EP1020132A1 (en) | 2000-07-19 |
EP1020132B1 true EP1020132B1 (en) | 2004-04-07 |
Family
ID=10845876
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20000300127 Expired - Lifetime EP1020132B1 (en) | 1999-01-12 | 2000-01-11 | Method of removing a pull tab from a slide fastener |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1020132B1 (en) |
CN (1) | CN1178606C (en) |
DE (1) | DE60009581T2 (en) |
ES (1) | ES2216818T3 (en) |
GB (1) | GB2345726A (en) |
ID (1) | ID27121A (en) |
PT (1) | PT1020132E (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1400330B1 (en) * | 2010-06-04 | 2013-05-24 | Minuterie 3M S R L | LAMPO HINGE SLIDER. |
CN112841821B (en) * | 2019-11-27 | 2023-03-14 | 浙江伟星实业发展股份有限公司 | Zipper, puller and pulling-on piece replacing device |
DE102020106788A1 (en) | 2020-03-12 | 2021-09-16 | Ottobock Se & Co. Kgaa | System for covering at least one prosthesis |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2495176A (en) * | 1946-02-01 | 1950-01-17 | Zip Clip Zipper Corp | Reversible slider for slide fasteners |
BE542906A (en) * | 1955-09-05 | |||
US3320645A (en) * | 1966-01-06 | 1967-05-23 | Scovill Manufacturing Co | Lock slider for zipper fasteners |
GB2190706A (en) * | 1986-05-21 | 1987-11-25 | Leonard Law | Zip puller |
JPH0755161B2 (en) * | 1989-03-31 | 1995-06-14 | ワイケイケイ株式会社 | Temporary pull of slider for slide fastener with automatic stop device |
-
1999
- 1999-01-12 GB GB9900623A patent/GB2345726A/en not_active Withdrawn
-
2000
- 2000-01-11 ES ES00300127T patent/ES2216818T3/en not_active Expired - Lifetime
- 2000-01-11 PT PT00300127T patent/PT1020132E/en unknown
- 2000-01-11 EP EP20000300127 patent/EP1020132B1/en not_active Expired - Lifetime
- 2000-01-11 DE DE2000609581 patent/DE60009581T2/en not_active Expired - Lifetime
- 2000-01-12 ID IDP20000014D patent/ID27121A/en unknown
- 2000-01-12 CN CNB001045067A patent/CN1178606C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1264557A (en) | 2000-08-30 |
DE60009581T2 (en) | 2005-04-21 |
ES2216818T3 (en) | 2004-11-01 |
CN1178606C (en) | 2004-12-08 |
ID27121A (en) | 2001-03-01 |
PT1020132E (en) | 2004-07-30 |
DE60009581D1 (en) | 2004-05-13 |
GB2345726A (en) | 2000-07-19 |
EP1020132A1 (en) | 2000-07-19 |
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