IE48234B1 - Flexible strip fasteners - Google Patents
Flexible strip fastenersInfo
- Publication number
- IE48234B1 IE48234B1 IE97579A IE97579A IE48234B1 IE 48234 B1 IE48234 B1 IE 48234B1 IE 97579 A IE97579 A IE 97579A IE 97579 A IE97579 A IE 97579A IE 48234 B1 IE48234 B1 IE 48234B1
- Authority
- IE
- Ireland
- Prior art keywords
- fastener
- strips
- flexible strip
- bag
- strip fasteners
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
- B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
- B65D33/2541—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor characterised by the slide fastener, e.g. adapted to interlock with a sheet between the interlocking members having sections of particular shape
-
- 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
- A44B19/16—Interlocking member having uniform section throughout the length of the stringer
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Slide Fasteners (AREA)
- Bag Frames (AREA)
Description
The invention relates to flexible strip fasteners of the sliderless variety for closing plastics material pouches. Such a fastener may, among other things, serve to provide a closure for the mouth of a plastics bag for holding articles of merchandise at point-of-sale display.
Such fasteners are known, for example from British Patent
Specifications 752,348, 800,169, 841,142 and 957,825. In all these cases, the fastener strips are provided with integral, laterally-projecting flanges for connection to the pouch to be closed. This connection is indeed a problem in the art, causing difficulties of alignment in manufacture, and unpleasant bulges or thickenings and thus waste of material. In British Patent Specification 1,150,632, the problem is solved by extruding the strips in one piece with the pouch material, but this has proved difficult to work in practice, and is expensive to operate.
A fastener according to the invention comprises two strips of flexible material provided with releasably interlockable longitudinal rib and groove elements, the fastener being generally of rectangular or square cross-section and not provided with any projecting flange by which '’'-'’’-the·· fastener„may be secured to an article. Having no flange, such a fastener is generally smaller than those known in the art, and can be introduced at any part of a bag or pouch, not only at the mouth. A lip may thus be left outside the closure, and cut to provide a handle or decorated for display purposes. The lip can be used in opening or closing the bag.
The fastener being generally of rectangular or square crosssection makes it readily aligned for installation in bag making machinery,
-248234 and insertable precisely where desired in a bag. The fastener may be secured in position by means of an adhesive or by welding. Thus the fastener is preferably of the same material as the bag to which it is to be applied, for example polyethylene, polypropylene or polyvinyl chloride. At least one of the strips may be coloured by means of a dye or pigment incorporated in the plastics material of which it is made. This can render the fastener distinctive as part of the overall design of a bag, or useful for colour-coding of the finished bag as to its contents or for any other purpose.
A fastener according to the invention can be inexpensively manufactured by extruding from dies one above another or side by side, and pressing the resulting two strips together as soon as they have cooled. A rib on one strip lockable in a single groove on another is all that is necessary, but more than one of each may be provided for increased closure strength. A rib may of course also function as a side wall of a groove.
The invention is illustrated by way of example in the drawing which is a section or end view of a fastener. In the drawing, two identical strips 2 of flexible plastics material are each provided with releasably interlockable longitudinal ribs 4, 5, 6, between adjacent pairs of'which are corresponding grooves 8, 9. The fastener is generally of rectangular cross-section when closed, although particularly in the open position shown the sides are inclined inwards. The outer ends of the ribs 5, 6 are provided with lugs 5a, 5a respectively. On closing the fastener, the lugs 5a and 6a engage, and the pressure applied bends the ribs 5, 6 laterally until the lugs 5a, 6a pass and interlock in the grooves 8, 9.
On opening the reverse happens.
Claims (3)
1. A fastener which comprises two strips of flexible material provided witn releasably interlockable longitudinal rib and groove elements, the fastener being generally of rectangular or square cross-section and 5 not provided with any projecting flange by which the fastener may be secured to an article.
2. A fastener according to claim 1 in which at least one of the strips is of plastics material and coloured by means of a dye or pigment incorporated therein. 10
3. A fastener as herein described with reference to the drawings. MACLACHLAN & DONALDSON Applicants' Agents 47 Merrion Square DUBLIN 2
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2195678A GB1587609A (en) | 1978-05-24 | 1978-05-24 | Flexible strip fasteners |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE790975L IE790975L (en) | 1979-11-24 |
| IE48234B1 true IE48234B1 (en) | 1984-11-14 |
Family
ID=10171581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE97579A IE48234B1 (en) | 1978-05-24 | 1979-08-08 | Flexible strip fasteners |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB1587609A (en) |
| IE (1) | IE48234B1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4909870A (en) * | 1986-08-08 | 1990-03-20 | Minigrip, Inc. | Method of and apparatus for attaching continuously running fastener strip to web substrate |
| US4731911A (en) * | 1986-08-08 | 1988-03-22 | Minigrip, Inc. | Extruded closure strip carrying reactivatable adhesive layer |
| US4835835A (en) * | 1986-08-08 | 1989-06-06 | Minigrip, Inc. | Method and apparatus for making extruded separable fastener with reactivatable adhesive |
| JPH0755026Y2 (en) * | 1988-02-16 | 1995-12-18 | 北川工業株式会社 | Fixture |
| WO1991019433A1 (en) * | 1990-06-11 | 1991-12-26 | Rudolf Ritter | Closure for sports shoes or luggage and for holding articles together in trade and industry |
| US5628566A (en) * | 1996-01-29 | 1997-05-13 | Reynolds Consumer Products, Inc. | Profile sealing flange |
| FR2945796A1 (en) * | 2009-05-19 | 2010-11-26 | Thierry Sanchez | Dismountable retaining device for fixing and dismounting large surface sheets on support panels, has protuberance arranged between jaws and nozzles projecting from support surfaces to serve as abutment to reinforce locking of profiles |
-
1978
- 1978-05-24 GB GB2195678A patent/GB1587609A/en not_active Expired
-
1979
- 1979-08-08 IE IE97579A patent/IE48234B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| IE790975L (en) | 1979-11-24 |
| GB1587609A (en) | 1981-04-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Patent lapsed |