DE2920225A1 - DRAWING DEVICE MADE OF MOLDED PLASTIC FOR LINING - Google Patents
DRAWING DEVICE MADE OF MOLDED PLASTIC FOR LININGInfo
- Publication number
- DE2920225A1 DE2920225A1 DE19792920225 DE2920225A DE2920225A1 DE 2920225 A1 DE2920225 A1 DE 2920225A1 DE 19792920225 DE19792920225 DE 19792920225 DE 2920225 A DE2920225 A DE 2920225A DE 2920225 A1 DE2920225 A1 DE 2920225A1
- Authority
- DE
- Germany
- Prior art keywords
- drawing device
- molded plastic
- lining
- roughening
- device made
- 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.)
- Withdrawn
Links
- 239000002991 molded plastic Substances 0.000 title claims description 4
- 238000007788 roughening Methods 0.000 claims description 7
- 238000009760 electrical discharge machining Methods 0.000 claims description 2
- 238000005488 sandblasting Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L7/00—Straightedges
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
- B29C33/424—Moulding surfaces provided with means for marking or patterning
-
- 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
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
- B29K2995/0024—Matt surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/752—Measuring equipment
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Drawing Aids And Blackboards (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
ILCA S.r.l., Cremona (Italien) Zeichengerät aus formgepresstem Kunststoff zum LinienziehenILCA S.r.l., Cremona (Italy) Drawing device made of compression-molded plastic for drawing lines
Die Erfindung bezieht sich auf ein Zeichengerät aus formgepresstem Kunststoff zum Linienziehen, wie z.B. ein Lineal, Kurvenlineal oder Zeichendreieck.The invention relates to a drawing device made of compression molded Plastic for drawing lines, such as a ruler, curve ruler or drawing triangle.
Ein Nachteil herkömmlicher solcher Zeichengeräte besteht darin, daß ihre Oberfläche lichtreflektierend ist und damit geeignet, den Benutzer zu blenden oder zumindest zu irritieren.A disadvantage of conventional such drawing devices is that their surface is light-reflecting and therefore suitable to dazzle or at least irritate the user.
Der Erfindung liegt die Aufgabe zugrunde, diesen Mangel zu beheben. Zu diesem Zweck weist das erfindungsgemäße Zeichengerät gemäß Anspruch 1 mindestens eine durch eine Aufrauhung der betreffenden Formfläche matt gemachte Oberfläche auf.The invention is based on the object of eliminating this deficiency. For this purpose, the drawing device according to the invention according to claim 1, at least one surface made matt by roughening the relevant mold surface.
Die Mattigkeit der Oberfläche verhindert, daß Licht gerichtet auf den Benutzer des Zeichengeräts reflektiert wird. Die hierzu verwendete Rauhigkeit der betreffenden Formfläche kann auf verschiedene Arten gewonnen werden, die den Gegenstand der Unteransprüche bilden.The mattness of the surface prevents light from being reflected in a directed manner towards the user of the drawing instrument. the this used roughness of the mold surface in question can be obtained in various ways that the subject of the Form subclaims.
Nachfolgend ist ein Ausführungsbeispiel der Erfindung anhand der Zeichnung genauer beschrieben. Von dieser zeigt An exemplary embodiment of the invention is described in more detail below with reference to the drawing. From this shows
Fig. 1 eine Draufsicht auf das betreffende Zeichengerät in Gestalt eines Lineals undFig. 1 is a plan view of the drawing device in question in shape a ruler and
Fig. 2 einen stark vergrößerten Teilquerschnitt durch das Lineal nach Fig. 1.FIG. 2 shows a greatly enlarged partial cross section through the ruler according to FIG. 1.
./. 030029/0498 ./. 030029/0498
Das in Fig. 1 gezeigte Lineal 1 trägt eine Maßskala 2, die der Einfachheit halber nur teilweise gezeigt ist. Die darüberhinaus erkennbare Punktierung soll eine Mattierung der dem Betrachter bzw. Benutzer des Lineals zugewandten Oberfläche 3 darstellen. Diese Mattierung bewirkt, daß von dieser Oberfläche kein gerichtetes Licht reflektiert und damit kein Spiegel- oder Glanzeffekt hervorgerufen wird.The ruler 1 shown in Fig. 1 has a measuring scale 2, which is only partially shown for the sake of simplicity. The moreover The recognizable puncturing is intended to provide a matting of the surface 3 facing the viewer or user of the ruler represent. This matting has the effect that no directed light is reflected from this surface and thus no Mirror or gloss effect is caused.
In Fig. 2 ist erkennbar, daß die Oberfläche 3 eine Vielzahl winziger Vorsprünge 4 aufweist, die sie rauh erscheinen lassen. Diese Rauhigkeit der Oberfläche wird erhalten durch eine entsprechende Aufrauhung der Formwand, mit welcher diese Oberfläche formgepresst wird. Die Aufrauhung der Formwand wiederum kann auf verschiedene Weise, wie z.B. mittels Sandstrahlen, Photoäizen oder Funkenerosion, hergestellt werden.In Fig. 2 it can be seen that the surface 3 has a large number of tiny projections 4, which make it appear rough. This roughness of the surface is obtained by a corresponding Roughening of the mold wall with which this surface is compression molded. The roughening of the mold wall, in turn can be produced in various ways, such as sandblasting, photo etching or spark erosion.
Eine solchermaßen hergestellte Oberfläche verringert den sonst üblichen Spiegel- oder Glanzeffekt auf ein Minimum, da die auftreffenden Lichtstrahlen davon in einer nahezu unbegrenzten Anzahl verschiedener Richtungen reflektiert und z.T. Absorbiert werden, so daß nur ein kleiner Bruchteil von ihnen in das Auge des Betrachters bzw. Benutzers gelangt. Auf diese Weise wird der Benutzer beim Gebrauch nicht irritiert.A surface produced in this way reduces the otherwise usual mirror or gloss effect to a minimum, since the incident light rays from it in an almost unlimited number are reflected in different directions and partly absorbed, so that only a small fraction of them enter the eye of the viewer or user arrives. In this way, the user is not irritated during use.
Zum Erhalt der gewünschten Wirkung ist es im allgemeinen ausreichend, nur eine der beiden Hauptflächen des betreffenden Zeichengeräts matt zu machen. Vorteilhafter ist es indessen, wenn auch die übrigen Flächen matt gemacht werden einschließlich der Stirnflächen» Auf diese Weise kann das betreffende Zeichengerät mit dem gleichen Vorteil auch umgekehrt herum gehandhabt werden, und i.ü. unterbleibt auch die sonst oft irritierende Spiegelung an den Kanten.To obtain the desired effect, it is generally sufficient to use only one of the two main surfaces of the relevant To make the drawing device matt. However, it is more advantageous if the other surfaces are also made matt, including of the end faces »In this way the drawing device in question can also be handled the other way around with the same advantage, and i.ü. The otherwise often irritating thing is also omitted Reflection on the edges.
030029/0498030029/0498
Obgleich vorausgehend nur ein Lineal als Beispiel für das erfindungsgemäße Zeichengerät beschrieben wurde, versteht es
sich, daß die Erfindung mit gleichem Vorteil auch für andere zum Linienziehen geeignete Zeichengeräte aus formgepresstem
Kunststoff Anwendung finden kann.Although only a ruler has been described above as an example for the drawing device according to the invention, it goes without saying that the invention can also be used with the same advantage for other drawing devices made of compression-molded, which are suitable for drawing lines
Plastic can be used.
030029/0498030029/0498
Claims (4)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT7919284A IT7919284A0 (en) | 1979-01-15 | 1979-01-15 | PLASTIC DRAWING TOOL FOR TRACING LINES WITH A MATT SURFACE TO MINIMIZE REFLECTION. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2920225A1 true DE2920225A1 (en) | 1980-07-17 |
Family
ID=11156399
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19792920225 Withdrawn DE2920225A1 (en) | 1979-01-15 | 1979-05-18 | DRAWING DEVICE MADE OF MOLDED PLASTIC FOR LINING |
| DE19797914506U Expired DE7914506U1 (en) | 1979-01-15 | 1979-05-18 | DRAWING MACHINE MADE OF MOLDED PLASTIC FOR LINING |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19797914506U Expired DE7914506U1 (en) | 1979-01-15 | 1979-05-18 | DRAWING MACHINE MADE OF MOLDED PLASTIC FOR LINING |
Country Status (5)
| Country | Link |
|---|---|
| DE (2) | DE2920225A1 (en) |
| ES (1) | ES242709Y (en) |
| FR (1) | FR2446190A1 (en) |
| GB (1) | GB2040784B (en) |
| IT (1) | IT7919284A0 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0047839A3 (en) * | 1980-08-28 | 1984-05-02 | Gebr. Happich GmbH | Method of producing an extruded plastics profiled edging, and an apparatus for carrying out said method |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2553038B1 (en) * | 1983-10-10 | 1988-03-04 | Tassin Robert | WIRE LOOP TRACE-ELLIPSE |
| JP3100540B2 (en) * | 1995-10-30 | 2000-10-16 | ゼブラ株式会社 | Writing implement |
| CN1063394C (en) * | 1997-01-31 | 2001-03-21 | 台湾三条股份有限公司 | Manufacturing method of glass fiber tape with high tensile strength |
| EP3497400A4 (en) * | 2016-08-09 | 2020-03-25 | Luke Deane Etheredge | Device for use with laser alignment devices |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE667286A (en) * | ||||
| US2563191A (en) * | 1950-07-31 | 1951-08-07 | Raymond W Russ | Illuminated draftsman's guide |
| FR1075261A (en) * | 1953-01-08 | 1954-10-14 | Quenot Et Cie Ets | Linear articulated measurements, single and double-meter or approximate measurements, made of plastics of any kind |
| FR1130540A (en) * | 1955-08-23 | 1957-02-06 | Improvement in graduated rulers and similar instruments | |
| FR1191549A (en) * | 1958-02-14 | 1959-10-20 | Improvements to the rules to draw lines | |
| FR1240770A (en) * | 1959-10-13 | 1960-09-09 | Plastic slate | |
| FR1568891A (en) * | 1968-02-13 | 1969-05-30 |
-
1979
- 1979-01-15 IT IT7919284A patent/IT7919284A0/en unknown
- 1979-04-16 ES ES1979242709U patent/ES242709Y/en not_active Expired
- 1979-04-17 GB GB7913325A patent/GB2040784B/en not_active Expired
- 1979-05-07 FR FR7912132A patent/FR2446190A1/en active Granted
- 1979-05-18 DE DE19792920225 patent/DE2920225A1/en not_active Withdrawn
- 1979-05-18 DE DE19797914506U patent/DE7914506U1/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0047839A3 (en) * | 1980-08-28 | 1984-05-02 | Gebr. Happich GmbH | Method of producing an extruded plastics profiled edging, and an apparatus for carrying out said method |
Also Published As
| Publication number | Publication date |
|---|---|
| IT7919284A0 (en) | 1979-01-15 |
| DE7914506U1 (en) | 1983-01-13 |
| FR2446190B1 (en) | 1984-12-14 |
| FR2446190A1 (en) | 1980-08-08 |
| GB2040784B (en) | 1983-01-12 |
| GB2040784A (en) | 1980-09-03 |
| ES242709U (en) | 1979-07-01 |
| ES242709Y (en) | 1979-12-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OAP | Request for examination filed | ||
| OD | Request for examination | ||
| 8130 | Withdrawal |