EP0596050A1 - Procede de formage statique de bords roules d'abat-jour. - Google Patents
Procede de formage statique de bords roules d'abat-jour.Info
- Publication number
- EP0596050A1 EP0596050A1 EP93904102A EP93904102A EP0596050A1 EP 0596050 A1 EP0596050 A1 EP 0596050A1 EP 93904102 A EP93904102 A EP 93904102A EP 93904102 A EP93904102 A EP 93904102A EP 0596050 A1 EP0596050 A1 EP 0596050A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- membrane
- cutout
- lampshade
- edges
- rings
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
- F21V1/26—Manufacturing shades
Definitions
- the subject of the present invention is as a product
- the rings in question being produced mainly in
- cutouts are made of a thermoplastic material coated or not, laminated or not, in particular on fabrics.
- the present invention aims to remedy these drawbacks and relates to a system for pushing the edges of the lampshades by a static process.
- the lampshade is finished.
- Fig. 1 is a section of the lampshade
- - Fig. 2 is a section of the form
- - Fig. 3 is a section of the form with the rings
- - Fig. 4 is a section of the form with the rings
- - Fig. 5 is a section through the system during heating
- - Fig. 6 is a section through the system after heating and during the supply of the membrane
- - Fig. 7 is a section through the system after the descent of the membrane
- - Fig. 8 is a section of the system during the aspiration of the membrane
- - Fig. 9 is a section of the alternative system; the upper circle being provided with a support,
- - Fig.10 is a top view of fig. 9
- a lampshade produced according to the present system consists of an upper (1) and lower (2) metal ring as well as a cutout in thermoplastic material (3).
- the rings are held on the blank by crimping formed by an appropriate deformation of the edges of said blank (4) and (5).
- the upper edge (19) of the cutout therefore undergoes a beginning of deformation under the action of said membrane.
- the membrane is discarded and the finished lampshade can be extracted from its housing, that is to say from the shape.
- the upper ring is provided with a support consisting of three rods (27) welded to a washer (21).
- a plate (24) is arranged in the form after the upper ring has been put in place, in order to avoid the membrane being sucked into the clearance (22) .
- the lampshades provided with a support once completed, can be removed from the form by means of an ejector which pushes on the washer (21).
- the system according to the present invention comprises
- the products thus produced have a perfect finish, including in particular the flatness and the total absence of trace of lamination,
- the size of the lampshades produced is no longer a criterion for their good execution, the larger lampshades having the same integrity finish as the smaller ones.
- supports can be used made up of a number of rods greater than or less than the number of rods represented,
- the membrane (s) can be cooled or heated, some are heated, others are cooled, - one can use compressed air to press the membrane on the form, in this case, the outside of the membrane is put under a bell,
- this compressed air can be replaced by a liquid fluid
- edges of the cutouts can be formed directly on the form, without including said rings or including only one.
- the ventilator's mission is to thermally regulate the membrane (l ⁇ ) when it is placed on the form, and to regulate the form itself when the membrane or the heating plate are removed.
- the air blown by this fan is cooled or heated if desired, by a heat exchanger (29).
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Polarising Elements (AREA)
- Joints Allowing Movement (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9200733 | 1992-01-22 | ||
FR9200733A FR2686285B3 (fr) | 1992-01-22 | 1992-01-22 | Procede de formage statique de bords roules d'abat-jour. |
PCT/FR1993/000057 WO1993015356A1 (fr) | 1992-01-22 | 1993-01-21 | Procede de formage statique de bords roules d'abat-jour |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0596050A1 true EP0596050A1 (fr) | 1994-05-11 |
EP0596050B1 EP0596050B1 (fr) | 1997-04-02 |
Family
ID=9425924
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93904102A Expired - Lifetime EP0596050B1 (fr) | 1992-01-22 | 1993-01-21 | Procede de formage statique de bords roules d'abat-jour |
Country Status (9)
Country | Link |
---|---|
US (1) | US5496511A (fr) |
EP (1) | EP0596050B1 (fr) |
AT (1) | ATE151158T1 (fr) |
AU (1) | AU3503293A (fr) |
DE (1) | DE69309393T2 (fr) |
DK (1) | DK0596050T3 (fr) |
ES (1) | ES2102014T3 (fr) |
FR (1) | FR2686285B3 (fr) |
WO (1) | WO1993015356A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9403432D0 (en) * | 1994-02-23 | 1994-04-13 | Welwyn Lighting Designs Ltd | Method of manufacturing lampshades and apparatus for performing the method |
GB9511326D0 (en) * | 1995-06-05 | 1995-08-02 | Welwyn Lighting Designs Ltd | Method of manufacturing lampshades and apparatus for performing the method |
FR2765669B1 (fr) * | 1997-07-01 | 2001-12-14 | Corep Sa | Systeme de formage des abat-jour |
US10303860B2 (en) | 2011-10-04 | 2019-05-28 | Electro Industries/Gauge Tech | Security through layers in an intelligent electronic device |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US892702A (en) * | 1907-07-23 | 1908-07-07 | Arthur E Wyman | Method of covering objects with sheet-pyroxylin. |
US2265111A (en) * | 1940-07-06 | 1941-12-02 | Joseph H Brown | Fabrication of lamp shades and the like |
GB694379A (en) * | 1949-12-21 | 1953-07-22 | Gustave Walter Borkland | Tubular articles, for example lamp shades |
DE1228468B (de) * | 1959-03-30 | 1966-11-10 | Dayco Corp | Biegsame Rohrleitung und Verfahren zu ihrer Herstellung |
FR1245721A (fr) * | 1959-10-01 | 1960-10-03 | Perfectionnements aux procédés de fabrication des abat-jour en acétate de cellulose ou matière analogue | |
US3334383A (en) * | 1965-11-03 | 1967-08-08 | Lockheed Aircraft Corp | Molding apparatus |
US3453162A (en) * | 1966-01-10 | 1969-07-01 | Continental Can Co | Method of and apparatus for lining paper containers |
US3497917A (en) * | 1967-04-11 | 1970-03-03 | Kimatic Inc | Bead formation |
US3827130A (en) * | 1970-09-18 | 1974-08-06 | Cegedur | Method of making thermoplastic lined metal bodies |
US3793427A (en) * | 1972-04-03 | 1974-02-19 | Johns Manville | Method of forming the bell end of a bell and spigot joint |
US3833326A (en) * | 1973-05-09 | 1974-09-03 | Andersen Corp | Post-forming apparatus |
GB1602625A (en) * | 1977-03-23 | 1981-11-11 | Tokan Kogyo Co Ltd | Double-walled paper container and a method for producing the same |
US4181698A (en) * | 1978-05-03 | 1980-01-01 | Hayes Fay A | Method of belling a plastic pipe |
FI810891L (fi) * | 1981-03-23 | 1982-09-24 | Asko Upo Oy | Foerfarande och anordning foer framstaellning av en med en taetningsring foersedd muffdel till ett plastroer |
JPS6097826A (ja) * | 1983-11-04 | 1985-05-31 | Fuji Heavy Ind Ltd | フアブリツクの真空成形方法 |
US4705589A (en) * | 1984-01-13 | 1987-11-10 | Nrm Corporation | Tire building machine |
US4660498A (en) * | 1984-05-22 | 1987-04-28 | The Coleman Company, Inc. | Method of reinforcing flexible plastic |
DE3611514A1 (de) * | 1986-04-05 | 1987-10-08 | Rudolf Froehlich | Hohlkoerper mit einem innenkoerper aus einer thermoplastisch verformbaren kunststoffplatte |
DE3727926A1 (de) * | 1986-08-27 | 1988-03-10 | Dornier Gmbh | Verfahren zur herstellung von formteilen |
-
1992
- 1992-01-22 FR FR9200733A patent/FR2686285B3/fr not_active Expired - Lifetime
-
1993
- 1993-01-21 ES ES93904102T patent/ES2102014T3/es not_active Expired - Lifetime
- 1993-01-21 AT AT93904102T patent/ATE151158T1/de not_active IP Right Cessation
- 1993-01-21 WO PCT/FR1993/000057 patent/WO1993015356A1/fr active IP Right Grant
- 1993-01-21 EP EP93904102A patent/EP0596050B1/fr not_active Expired - Lifetime
- 1993-01-21 AU AU35032/93A patent/AU3503293A/en not_active Abandoned
- 1993-01-21 DE DE69309393T patent/DE69309393T2/de not_active Expired - Fee Related
- 1993-01-21 US US08/119,140 patent/US5496511A/en not_active Expired - Fee Related
- 1993-01-21 DK DK93904102.6T patent/DK0596050T3/da active
Non-Patent Citations (1)
Title |
---|
See references of WO9315356A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU3503293A (en) | 1993-09-01 |
WO1993015356A1 (fr) | 1993-08-05 |
FR2686285B3 (fr) | 1994-05-06 |
FR2686285A1 (fr) | 1993-07-23 |
ATE151158T1 (de) | 1997-04-15 |
DE69309393D1 (de) | 1997-05-07 |
EP0596050B1 (fr) | 1997-04-02 |
ES2102014T3 (es) | 1997-07-16 |
US5496511A (en) | 1996-03-05 |
DK0596050T3 (da) | 1997-10-13 |
DE69309393T2 (de) | 1997-10-09 |
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