EP0935579B1 - Spool made of plastics - Google Patents
Spool made of plastics Download PDFInfo
- Publication number
- EP0935579B1 EP0935579B1 EP97912604A EP97912604A EP0935579B1 EP 0935579 B1 EP0935579 B1 EP 0935579B1 EP 97912604 A EP97912604 A EP 97912604A EP 97912604 A EP97912604 A EP 97912604A EP 0935579 B1 EP0935579 B1 EP 0935579B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grip
- core
- spool
- lugs
- discs
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/18—Constructional details
- B65H75/22—Constructional details collapsible; with removable parts
- B65H75/2245—Constructional details collapsible; with removable parts connecting flange to hub
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/18—Constructional details
- B65H75/22—Constructional details collapsible; with removable parts
- B65H75/2254—Constructional details collapsible; with removable parts with particular joining means for releasably connecting parts
- B65H75/2281—Snap-fit connections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/50—Storage means for webs, tapes, or filamentary material
- B65H2701/51—Cores or reels characterised by the material
- B65H2701/513—Cores or reels characterised by the material assembled mainly from rigid elements of the same kind
- B65H2701/5136—Moulded plastic elements
Definitions
- the present invention relates to a spool of a plastics material for reception thereon of a strand-like material, such as e.g. tape, cable, wire and the like, comprising two preferably disc-like end members held together in spaced-apart relationship by a tubular core extending between said end discs.
- the end discs and the core are formed with portions of complementary configuration, which are fitted into one another upon assembly of the spool.
- the end discs are provided with protruding supports having radial, grip lugs thereon.
- the protruding supports project axially from the facing sides of the discs, and in the area of its ends the core is provided with grip portions comprising grip edges.
- Spools of this kind usually are manufactured by moulding the end discs separately and then gluing them to the core.
- numerous different end-disc diameter sizes could be used together with a core of a specific length just like numerous different core lengths could be used together with an end disc of a specific diameter size.
- glue is used as the bonding agent to fasten the end discs to the core it is very difficult to find a glue that is suitable from an environmental point of view.
- factory-finished spools are very bulky to store as well as to transport and handle.
- Another way of manufacturing a spool is to assemble the spool from two parts of end-disc members and one middle tubular part.
- Such a spool is disclosed in DE 22 59 364, upon which the preamble of the first claim of the present application is based.
- a spool of that kind is having cantilever-like grip lugs at the end-discs, intended to engage in recesses in the middle tubular part for assemblage.
- the main object of the invention is to provide a spool obviating the necessity of using environmentally harmful bonding agents while at the same time the number of pieces necessary to supply the desired spool volumes and spool dimensions is considerably reduced.
- a further object of the invention is to provide a reliably operating spool structure that requires but a minimum storage and transportation space.
- the buyer could purchase end discs of only one or in any case a very reduced number of diameter sizes, and with the aid of cores of different lengths he is able to make the adaptations necessary for the desired volume in view of the material to be wound onto the spool. It is, of course, likewise possible to purchase cores of one or at least only a few different dimensions and adapt the volume with the aid of end discs of different diameter sizes. Because the end discs are press fit onto, and not integrated with the core, the assembly of the parts may be effected by the user, which offers considerable advantages from a transportation point of view. It should be appreciated that just like before there is nothing to prevent assembly of the spool at the place of moulding of the plastic components. This arrangement also gives a very strong construction with minimum risks for the components separating when handled roughly.
- the grip lugs of the end discs are configured as hook-like tongues comprising a wedge-shaped face turned away from the associated end disc and a grip edge facing the associated end disc for snap engagement with the grip portion in the core. Accordingly, the assembly may be performed conveniently by merely pressing the end discs and the core together axially.
- the grip tongues are directed radially outwards, and the grip edges formed in the core are recesses made in the core wall, preferably in the shape of apertures extending through the core wall.
- the grip lugs on the end discs preferably are spaced apart along a circular arc, second protruding supports preferably being arranged between the first protruding supports, said second supports having wedge-shaped sloping ramps to be ridden on by the core.
- the grip lugs on the end discs are non-resilient, i.e.
- the spool illustrated in the drawing figures consists of two end discs 1 which are held together in spaced apart relationship by a tubular core 2.
- the end discs 1 preferably are identical but could equally well differ in shape as well as in configuration, should this be desired.
- the outwardly directed face of the end discs are formed with a number of stiffening ribs 3, 4 and 5. It is of course equally possible to provide the end discs with stiffening ribs on their inner face or to design them with a smooth outer face or both faces smooth, or to form them with stiffening ribs having a different appearance and extension.
- the spool may be used to receive any windable material, such as tape, cable, wire and the like.
- Numeral reference 6 designates protruding supports generally, said supports projecting from the inner face of the end disc and in accordance with the shown embodiment they consist of an annular, axially protruding flange 7 and of grip lugs 8 distributed along the flange periphery and projecting radially beyond the outer face of the flange.
- the grip lugs 8 form hook-shaped grip tongues comprising a wedge-shaped face 8a turned away from the inner face 9 of the end disc, and a grip edge 8b turned towards the inner face of the end disc.
- the grip tongues are stiffened by a stiffening web 10 extending radially towards the disc centre, the grip portions consequently being non-resilient (non-flexible).
- Numeral reference 11 designates a stiffening web which like stiffening web 10 extends radially and is formed with a wedge-like sloping edge face 12.
- the parts of the annular flange 7 extending between the grip tongues 8 have an obliquely bevelled face 13 on its edge turned away from the end disc.
- the oblique bevel 13 forms a continuation of the wedge-shaped edge face 12 of the stiffening web 11.
- the stiffening web 10 has a wedge-shaped face 14 which forms a continuation of the wedge-shaped face 8a of the engagement tongue 8.
- Numeral reference 15 designates a centre hole formed in the end disc by means of which the spool may be rotatably mounted on e.g. a shaft.
- Numeral reference 16 designates apertures formed adjacent the ends of the core 2, the aperture edges 18 closest to the core end 17 forming grip edges which cooperate with the grip edges 8b on the grip tongues. The spool is assembled by the core being pressed against the end disc 9.
- the grip tongues 8 are provided in a number of four as are also the projecting supports formed by the stiffening webs and positioned between the tongues. Within the scope of the invention, this number could, of course, be higher or lower. It is not either necessary that the number of projecting supports having grip tongues formed thereon is identical with the number of projecting supports positioned therebetween.
- the annular flange 6 need not be continuous along the entire periphery. Instead, it could be divided into a number of sections spaced somewhat apart. With a sufficiently large number of wedge-shaped edges 12 to be ridden by the core the flange-shaped annular member 7 could, however, be omitted altogether.
Landscapes
- Storage Of Web-Like Or Filamentary Materials (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Description
Claims (9)
- A spool made of plastics material for reception thereon of a windable material, such as e.g. tape, cable, wire and the like, comprising two preferably disc-like end members (1) held together in spaced-apart relationship by a tubular core (2) extending between said end discs, said end discs (1) and said core (2) are formed with portions of complementary configuration, said complementary portions being fitted into one another upon assembly of said spool, said end discs (1) being provided with protruding supports (6, 8) having radial, grip lugs (8) thereon, said protruding supports projecting axially from the facing sides of said discs, and in the area of its ends said core is provided with grip portions comprising grip edges (18), characterised in that said grip lugs (8) being non-resilient by having stiffening webs (10) extending radially from said grip lugs (8) towards said end disc (1) centre, i.e. rigid grip lugs, and in that said grip edges (18) are arranged, in the interfitted position of the core and the end discs, to be engaged by the end-disc grip lugs (8) after the latter, upon interfitting of the end discs and the core, having been forced past the core grip portions while making use of the resilience of the plastic material of the core (2) by extending the core in the circumferential direction.
- A spool as claimed in claim 1, characterised in that the grip lugs (6, 8) of the end discs (1) are configured as hook-like tongues (8) comprising a wedge-shaped face (8a) turned away from the associated end disc and a grip edge (8b) turned towards the associated end disc for snap engagement with the grip portions in the core.
- A spool as claimed in claim 2, characterised in that the grip tongues (8) are directed radially outwards.
- A spool as claimed in any one of claims 1-3, characterised in that the grip edges (18) formed in the core (2) are formed by grip recesses (16) formed in the core wall.
- A spool as claimed in claim 4, characterised in that the grip recesses (16) are apertures extending through the core wall.
- A spool as claimed in any one of claims 1-5, characterised in that the grip lugs (8) on the end discs are spaced apart along a circular arc.
- A spool as claimed in claim 6, characterised in that between the protruding supports (8) formed on the end discs second protruding supports (7, 11) are provided having wedge-shaped sloping ramps (13, 12) on which the core (2) rides.
- A spool as claimed in claim 7, characterised in that said second protruding supports (7) extend arcuately between said first protruding supports so as to form an annular means jointly with said first supports, one side face of said annular means having a diameter size corresponding to or exceeding the diameter size of one side of the core.
- A spool as claimed in claim 8, characterised in that said diameter sizes are adapted for press fit engagement between the protruding supports of the end discs and the core wall.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9604038 | 1996-11-04 | ||
SE9604038A SE507320C2 (en) | 1996-11-04 | 1996-11-04 | Coil of plastic material |
PCT/SE1997/001834 WO1998019953A1 (en) | 1996-11-04 | 1997-11-04 | Spool made of plastics |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0935579A1 EP0935579A1 (en) | 1999-08-18 |
EP0935579B1 true EP0935579B1 (en) | 2003-05-21 |
Family
ID=20404495
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97912604A Expired - Lifetime EP0935579B1 (en) | 1996-11-04 | 1997-11-04 | Spool made of plastics |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0935579B1 (en) |
AU (1) | AU4972997A (en) |
DE (1) | DE69722232T2 (en) |
NO (1) | NO313379B1 (en) |
SE (1) | SE507320C2 (en) |
WO (1) | WO1998019953A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2987503B1 (en) * | 1998-06-12 | 1999-12-06 | モルデック株式会社 | Plastic reel |
AUPQ899800A0 (en) * | 2000-07-25 | 2000-08-17 | Viscount Plastics (Nsw) Ltd | Collapsible reel assembly |
DE20106235U1 (en) | 2001-04-10 | 2001-06-28 | Häfner & Krullmann GmbH, 33818 Leopoldshöhe | Winding spool |
DE102007014508B4 (en) * | 2007-03-27 | 2010-04-22 | Helmut Wollnitzke | Coil device for wire, in particular for welding wire |
DE102015012671B3 (en) * | 2015-09-30 | 2017-02-23 | Helmut Wollnitzke | Ring bobbins |
CN206783015U (en) * | 2016-05-04 | 2017-12-22 | 竹菱(大连)实业有限公司 | The detachable recovery reel of slide fastener |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2990133A (en) * | 1958-06-18 | 1961-06-27 | American Pulley Co | One piece molded spool |
BE794779A (en) * | 1972-12-04 | 1973-05-16 | Filthaut Franz | WINDING SPOOL FOR TEXTILE OR SIMILAR YARNS |
DE8525459U1 (en) * | 1985-09-06 | 1985-10-24 | Häfner & Krullmann GmbH, 4817 Leopoldshöhe | Take-up reel for, in particular, tape-shaped winding material |
SE469982B (en) * | 1991-05-27 | 1993-10-18 | Ulvator Ab | Disposable drum for eg cable and cable |
DE4414577C2 (en) * | 1994-04-27 | 2001-12-20 | In Akustik Gmbh & Co Kg | Kitchen sink |
-
1996
- 1996-11-04 SE SE9604038A patent/SE507320C2/en not_active IP Right Cessation
-
1997
- 1997-11-04 EP EP97912604A patent/EP0935579B1/en not_active Expired - Lifetime
- 1997-11-04 WO PCT/SE1997/001834 patent/WO1998019953A1/en active IP Right Grant
- 1997-11-04 DE DE69722232T patent/DE69722232T2/en not_active Expired - Fee Related
- 1997-11-04 AU AU49729/97A patent/AU4972997A/en not_active Abandoned
-
1999
- 1999-05-03 NO NO19992133A patent/NO313379B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
NO313379B1 (en) | 2002-09-23 |
AU4972997A (en) | 1998-05-29 |
SE507320C2 (en) | 1998-05-11 |
NO992133D0 (en) | 1999-05-03 |
SE9604038D0 (en) | 1996-11-04 |
DE69722232T2 (en) | 2004-03-25 |
EP0935579A1 (en) | 1999-08-18 |
WO1998019953A1 (en) | 1998-05-14 |
NO992133L (en) | 1999-07-02 |
SE9604038L (en) | 1998-05-05 |
DE69722232D1 (en) | 2003-06-26 |
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