DE1779611A1 - Method for producing covers for housings, in particular device covers with a view - Google Patents
Method for producing covers for housings, in particular device covers with a viewInfo
- Publication number
- DE1779611A1 DE1779611A1 DE19681779611 DE1779611A DE1779611A1 DE 1779611 A1 DE1779611 A1 DE 1779611A1 DE 19681779611 DE19681779611 DE 19681779611 DE 1779611 A DE1779611 A DE 1779611A DE 1779611 A1 DE1779611 A1 DE 1779611A1
- Authority
- DE
- Germany
- Prior art keywords
- covers
- thermoplastic
- housings
- plastic
- transparent
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casings For Electric Apparatus (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
Verfahren zum Herstellen von Abdeckungen für Gehäuse, insbesondere Geräteabdeckungen mit einer Durchsicht Bei Geräteabdeckungen ist es von Vorteil, wenn diese eine Durchsicht aufweisen, um die Funktion von eingebauten Teilen ohne Öffnen de Gerätes kontroiiieren zu können.Method for producing covers for housings, in particular Device covers with a view In the case of device covers, it is advantageous to if these have a look-through to show the function of built-in parts without To be able to control the opening of the device.
Nach bekannten Verfahren werden bei duroplastischen Werkstoffen für solche Abdeckungen Gläser durch Klemmen oder Kleben nachträglich angebracht. Bei Verwendung von thermoplastischen Kunststoffen wird der gesamt Deckel aus einem glasklaren Werkstoff durch Spritzgießen hergestellt und gegebenenfalls partiell farbig ausgespritzt.According to known methods are in thermoset materials for such covers glasses retrofitted by clamping or gluing. at Using thermoplastics, the entire lid is made of a crystal clear one Material produced by injection molding and, if necessary, partially sprayed out in color.
Es hat sich gezeigt, da# bei Abdeckungen für Gehäuse, insbesondere bei Geräteabdeckungen, die nach dem bekannten Verfahren mit einer Durchsicht versehen sind, zwischen der Abdeckung und der eingefigten Klarsichtscheibe leicht Undichtigkeiten auftreten. Bs kann insbesondere Feuchtigkeit in das Gehäuse eindringen. Der Isolationswert wird verschlechtert.It has been shown that with covers for housings, in particular in the case of device covers that are provided with a see-through using the known method there are slight leaks between the cover and the inserted transparent panel appear. In particular, moisture can penetrate the housing. The insulation value will worsen.
Um diese Nachteile bei Gehäusen mit einer Durchsicht in der Abdeckung zu vermeiden, wird gemäß der erfindung eine Klarsichtscheibe aus einem Thermoplasten oer auJ Silikatglas mit einem Kunststoff umhüllt. Vorzugsweise wird eis thermoplastische Klarsichtscheibe, insbesondere eine durchsichtige Thermoplastfolie oder -platte mit einem duroplastischen Kunststoff, beispielsweise Phenolharz oder ungesättigtem Polyesterharz, umspritzt oder umpreßt.To avoid these disadvantages with housings with a view in the cover according to the invention, a transparent panel made of a thermoplastic is to be avoided or made of silicate glass encased in a plastic. Preferably, ice is thermoplastic Transparent pane, in particular a transparent thermoplastic film or sheet with a thermosetting plastic, for example phenolic resin or unsaturated Polyester resin, overmolded or overmolded.
Bei Gehäuseabdecxungen aus thermoplastischem Kunststoff ht es sich als besonders günstig erwiesen, zunächst einen Rahmen aus einem bekannten Thermoplasten, der gegebenenfalls dunkel eingefärbt sein kann, herzustellen. In einem zweiten Vorgang wird die Klarsichtscheibe aus einem Thermoplast, beispielsweise Polymethacrylat, eingespritzt. Durch die erfindungsgemäßen Lösungen können ohne Dichtungselemente höchste Dichteklassen erreicht werden. Die üblichen aufwendigen und unsicheren Klemm- und Klebeverbindungen bei duroplastischen Deckeln sind überflüssig. Bin weiterer Vorteil liegt insbesondere auch darin, da# die angebrachte thermoplastische durchsichtige Schicht nc dem Einpressen und Abkühlen einen Spanneffekt zeigt. Außerdem können die thermoplastischen, söheibenförmigen, durchsichtigen Einlagen über dem Zählwerk von Meßgeräten und ähnlichen linsenartige Verstärkung aufweisen, die a.s Lube wirken und das Ablesen erleichtern.This is the case with housing covers made of thermoplastic material proved to be particularly favorable, initially a frame made of a known thermoplastic, which can optionally be colored dark. In a second process If the transparent panel is made of a thermoplastic, for example polymethacrylate, injected. The solutions according to the invention can be used without sealing elements highest density classes can be achieved. The usual complex and unsafe clamping and adhesive connections for thermoset lids are superfluous. I'm another one The particular advantage is that the attached thermoplastic is transparent Layer after pressing in and cooling shows a tensioning effect. Also can the thermoplastic, disk-shaped, transparent inlays above the counter of gauges and similar lens-like gain that a.s. Lube work and make reading easier.
Nach dem erfindungsgemä#en Verfahren werden so mit Vorteil Geräteabdeckungen für die verschiedensten Bauelemente, insbesondere Zählerkappen, Kraftverteilungssysteme und Schaltgeräte hergesteht. Ausführungsbeispiele der Erfindung zeigen die Figuren 1 uni 2, in denen schematisch. mit Kiarsichtscheiben versehene Gehauseabdeckungen dargestellt sind.According to the method according to the invention, device covers are thus advantageously made for a wide variety of components, especially meter caps, power distribution systems and switching devices. Exemplary embodiments of the invention are shown in the figures 1 uni 2, in which schematically. Housing covers provided with transparent panels are shown.
Fig. 1 zeigt eine Klarsichtscheibe 1 aus einem Thermoplast, 41e gemä# der Erfindang mit der Geräteabieckung @ @us e@nem duroplastischen Kunststoff umspritat ist.Fig. 1 shows a transparent panel 1 made of a thermoplastic, 41e according to # the invention with the device triangle @ @us e @ nem duroplastic plastic is.
In Fig. @ @st eine Klarsichtscheibe 3 mit linsenart@ger Verstärkung dargestellt, wobei iLe Klarsichtacheibe aus einem thermoplastiscnen Kunststoff mit einem Duroplasten 4 umpre3t ist.In Fig. @ @St a transparent panel 3 with lens-type reinforcement shown, with iLe transparent disk made of a thermoplastic plastic a thermosetting plastic 4 is molded.
In Fig. 3 ist in eine thermoplastische Abdeckung 5 eine thermoplastische Klarsichtscheibe 6 mit linsenartiger Verstärkung eingespritzt.In Fig. 3 is a thermoplastic cover 5 in a thermoplastic Transparent disk 6 injected with lens-like reinforcement.
Geeignete Kunststoffe für das Gehäuse sind alle Duroplaste, wie z.B. Pheno- und Aminoplaste, Polyester und Thermoplaste wie Polycarbonate, Polymethacrylate und Polystyrole, Geeignete thermoplastische Kunststoffe für die Klarsichtscheibe sind glasklare Thermoplaste, z.B. PolymethacryJate, Polystyrole, Polycarbonate.Suitable plastics for the housing are all thermosets, e.g. Pheno- and aminoplasts, polyesters and thermoplastics such as polycarbonates, polymethacrylates and polystyrenes, suitable thermoplastics for the transparent pane are crystal clear thermoplastics, e.g. polymethacrylate, polystyrenes, polycarbonates.
4 Patentansprüche 3 Piguren4 claims 3 Piguren
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681779611 DE1779611A1 (en) | 1968-09-03 | 1968-09-03 | Method for producing covers for housings, in particular device covers with a view |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681779611 DE1779611A1 (en) | 1968-09-03 | 1968-09-03 | Method for producing covers for housings, in particular device covers with a view |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1779611A1 true DE1779611A1 (en) | 1971-09-09 |
Family
ID=5703989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19681779611 Pending DE1779611A1 (en) | 1968-09-03 | 1968-09-03 | Method for producing covers for housings, in particular device covers with a view |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1779611A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3515841A1 (en) * | 1985-05-02 | 1986-11-06 | Robert Thoma GmbH Rotho-Kunststoffwerke, 7800 Freiburg | Bucket and process for injection moulding a bucket with a window |
| EP0298873A1 (en) * | 1987-07-09 | 1989-01-11 | Duralith Corporation | Integrally molded composites of silicone rubber |
-
1968
- 1968-09-03 DE DE19681779611 patent/DE1779611A1/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3515841A1 (en) * | 1985-05-02 | 1986-11-06 | Robert Thoma GmbH Rotho-Kunststoffwerke, 7800 Freiburg | Bucket and process for injection moulding a bucket with a window |
| EP0298873A1 (en) * | 1987-07-09 | 1989-01-11 | Duralith Corporation | Integrally molded composites of silicone rubber |
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