DE2428235A1 - DEVICE FOR WRAPPING AND HOLDING LIQUID CRYSTAL FILMS - Google Patents
DEVICE FOR WRAPPING AND HOLDING LIQUID CRYSTAL FILMSInfo
- Publication number
- DE2428235A1 DE2428235A1 DE19742428235 DE2428235A DE2428235A1 DE 2428235 A1 DE2428235 A1 DE 2428235A1 DE 19742428235 DE19742428235 DE 19742428235 DE 2428235 A DE2428235 A DE 2428235A DE 2428235 A1 DE2428235 A1 DE 2428235A1
- Authority
- DE
- Germany
- Prior art keywords
- bevel
- frame
- liquid crystal
- outer frame
- edge
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/01—Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue
- A61B5/015—By temperature mapping of body part
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/24—Feed-dog lifting and lowering devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/12—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance
- G01K11/16—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance of organic materials
- G01K11/165—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance of organic materials of organic liquid crystals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/20—Clinical contact thermometers for use with humans or animals
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Surgery (AREA)
- Chemical & Material Sciences (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Molecular Biology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Textile Engineering (AREA)
- Liquid Crystal (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
T R OPO NWE R KE Dinklage & Co. Pharmazeutische Präparate, 5 Köln-MülheimT R OPO NWE R KE Dinklage & Co. Pharmaceutical Preparations, 5 Cologne-Mülheim
Die Erfindung betrifft ein Vorrichtung zum faltenfreien Spannen und Haltern von Flüssigkristall-Folien, bestehend aus einem viereckigen Außenrahmen mit einem außen angeordneten Zentrierrand für einen einpaßbaren Innenrahmen, der einen inneren Zentrierrand aufweist.The invention relates to a device for wrinkle-free tensioning and holding of liquid crystal films, consisting of a square outer frame with an externally arranged centering edge for a fitting inner frame, which has an inner Has centering edge.
Flüssigkristall-Folien, die zur thermographischen Diagnostik cutaner oder subcutaner Leiden , wie beispielsweise Tumore der weiblichen Brust, eingesetzt werden sollen, müssen faltenfrei gespannt sein. Darüber hinaus muß die Spannung so locker sein, daß eine Überdrehung der Folie unterbleibt. Die gebräuchlichste Art, sehr dünne Flüssigkristall-Folien zu spannen und fixieren, besteht darin, daß diese Folien in glatte Rahmen eingelegt und verklebt werden. Dieses Verfahren ist zeitaufwendig und bei einem falschen Einlegen der Folie sind die auftretenden Fehler nicht mehr reparierbar.Liquid crystal films used for the thermographic diagnosis of cutaneous or subcutaneous diseases, such as tumors of the female breasts to be used must be stretched and wrinkle-free. In addition, the tension must be so loose that an over-rotation of the film does not occur. The most common way of stretching and fixing very thin liquid crystal foils, consists in that these foils are inserted and glued in smooth frames. This procedure is time consuming and involves one Incorrect insertion of the film, the errors that occur can no longer be repaired.
Der Erfindung liegt die Aufgabe zugrunde, einen Rahmen zu erstellen, mit dem eine Flüssigkristall-Folie selbsttätig faltenlos gespannt werden kann, ohne dabei die Flüssigkristall-Folie zu zerstören, und wobei die Folie in dem gespannten Zustand fixiert wird.The invention is based on the object of creating a frame with which a liquid crystal film can be stretched automatically without creases, without the liquid crystal film to destroy, and wherein the film is fixed in the tensioned state.
Le A 15 823Le A15823
509881/0552509881/0552
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, das die innere Begrenzung des Außenrahmens als Spannwulst ausgestaltet ist, dessen zum Zentrierrand gerichtete Fläche als Abschrägung ausgebildet ist, wobei die Oberkante des Spannwulstes abgerundet ist und seine Flächen glatt sind, und die vom Zentrierrand weg gerichtete Fläche des Spannwulstes ebenfalls als Abschrägung ausgebildet ist, wobei diese Abschrägung steiler ist als die zum Zentrierrand gerichtete Abschrägung, und wobei die Ecken der inneren Begrenzung des Außenrahmens und des Innenrahmens Abrundungen aufweisen, und wobei der Innenrahmen eine mit dem Spannwulst zusammenwirkende Spannut besitzt, deren zum Außenrand des Innenrahmens gerichtete Fläche eine zur Abschrägung des Spannwulstes parallele Abschrägung aufweist.According to the invention, this object is achieved in that the inner delimitation of the outer frame is designed as a tension bead is, whose surface facing the centering edge is designed as a bevel, the upper edge of the clamping bead is rounded and its surfaces are smooth, and so is the surface of the clamping bead facing away from the centering edge is designed as a bevel, this bevel being steeper than the bevel directed towards the centering edge, and wherein the corners of the inner boundary of the outer frame and the inner frame have rounded corners, and wherein the Inner frame has a flute cooperating with the clamping bead, the surface of which is directed towards the outer edge of the inner frame has a bevel parallel to the bevel of the clamping bead.
Die mit dieser erfindungsgemäßen Vorrichtung erzielten Vorteile bestehen insbesondere darin das eine Flüssigkristall-Folie locker in den geöffnetem Rahmen gelegt wird, und der Rahmen dann zusammengedrückt werden kann. Dabei wird die Flüssigkristall-Folie schonend gespannt, indem die Flüssigkristall-Folie über die abgerundeten Kanten des Spannwulstes gezogen wird .. Dadurch daß die Oberflächen glatt sind, dies wird durch polierte Formen des Spritzgußwerkzeuges erreicht, gleitet die Flüssigkristall-Folie während des Spannvorganges über die Oberfläche des Spannwulstes, ohne beschädigt zui werden. Die Abrundungen der Ecken der inneren Begrenzung des Außenrahmens und des Innenrahmens sind so gewählt, daß auch in diesem Bereich keine Faltenbildung in der Flüssigkristall-Folie auftreten kann. Nach dem Spannen wird dieser Spannzustand der Folie durch den Rahmen erhalten.The advantages achieved with this device according to the invention are in particular that a liquid crystal film is loose is placed in the open frame, and the frame can then be compressed. This is the liquid crystal film Gently tensioned by pulling the liquid crystal film over the rounded edges of the tensioning bead that the surfaces are smooth, this is achieved by polished shapes of the injection molding tool, the liquid crystal film slides during the clamping process over the surface of the clamping bead without being damaged. The rounding of the corners the inner boundary of the outer frame and the inner frame are chosen so that no wrinkles are formed in this area either can occur in the liquid crystal film. After tensioning, this tensioned state of the film is maintained by the frame.
Nach einer weiteren Ausgestaltung der erfindungsgemaßen Vorrichtung sind Krampen am Außenrahmen angeordnet, die in Öffnungen des Innenrahmens einsteckbar sind. Dadurch wird erreicht, daßAccording to a further embodiment of the device according to the invention Staples are arranged on the outer frame, which can be inserted into openings in the inner frame. It is thereby achieved that
Le A 15 823 - 2 -Le A 15 823 - 2 -
609881/0552609881/0552
Innen- und Außenrahmen miteinander verbunden sind, und die Flüssigkristall-Folie in ihrem gespannten Zustand fixiert ist. Ein Öffnen von Außen- und Innenrahmen ist nur mit Spezialwerkzeugen möglich. Dadurch wird erreicht, daß ein unbefugtes Herausnehmen der Flüssigkristall-Folie weitgehend vermieden wird.The inner and outer frames are connected to one another, and the liquid crystal film is fixed in its tensioned state. The outer and inner frames can only be opened with special tools. This ensures that unauthorized removal the liquid crystal film is largely avoided.
Nach einer weiteren Ausgestaltung der erfindungsgemäßen Vorrichtung wird ein Doppelklebeband auf der Innenseite des Außenrahmens angeordnet. Dadurch ist eine weitere Sicherung gegen Herausnahme der Flüssigkristall-Folie aus dem Spannrahmen gegeben. According to a further embodiment of the device according to the invention a double-sided adhesive tape is placed on the inside of the outer frame. This is another safeguard against Given the removal of the liquid crystal film from the tenter frame.
Ein Ausführungsbeispiel der erfindungsgemäßen Vorrichtung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben. Es zeigen:An embodiment of the device according to the invention is shown in the drawing and is described in more detail below. Show it:
Figur 1 : Aufsicht auf die erfindungsgemäße Vorrichtung Figur 2: Schnitt nach Figur 1 längs der Linien A,BFigure 1: Top view of the device according to the invention Figure 2: Section according to Figure 1 along the lines A, B
In den Außenrahmen 1 ist der Innenrahmen 2 eingesteckt. Durch Krampen 3 sind beide fest miteinander verbunden. Die Ecken der inneren Begrenzung des Außenrahmens und des Innenrahmens weisen Abrundungen mit einem Radius von 20 mm bis .25 mm auf. Der Spannwulst 4 hat eine Abschrägung die zum Zentrierrand 5 hingerichtet ist, die einen Winkel 45° aufweist. Der Radius des oberen Teiles des Spannwulstes beträgt-^1,2 mm. Die vom Zentrierrand wegweisende Fläche des Spannwulstes weist eine Neigung von 5° auf.The inner frame 2 is inserted into the outer frame 1. Both are firmly connected to one another by means of staples 3. The corners of the inner boundary of the outer frame and the inner frame have rounded edges with a radius of 20 mm to .25 mm. The tension bead 4 has a bevel which is directed towards the centering edge 5, which has an angle of 45 °. The radius of the top part of the clamping bead is - ^ 1.2 mm. The one pointing away from the centering edge The surface of the clamping bead has an inclination of 5 °.
Le A 15 823Le A15823
509881/0552509881/0552
Claims (3)
Priority Applications (18)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742428235 DE2428235A1 (en) | 1974-06-11 | 1974-06-11 | DEVICE FOR WRAPPING AND HOLDING LIQUID CRYSTAL FILMS |
CH644375A CH585896A5 (en) | 1974-06-11 | 1975-05-20 | |
GB2217375A GB1469910A (en) | 1974-06-11 | 1975-05-22 | Device for the fold-free stretching and holding of liquid crystal films |
NO751915A NO751915L (en) | 1974-06-11 | 1975-05-30 | |
BE157141A BE830009A (en) | 1974-06-11 | 1975-06-09 | DEVICE FOR STRAIGHTENING AND FIXING WITHOUT FOLDING SHEETS OF LIQUID CRYSTALS |
LU72674A LU72674A1 (en) | 1974-06-11 | 1975-06-09 | |
NL7506835A NL7506835A (en) | 1974-06-11 | 1975-06-09 | DEVICE FOR TENSIONING AND HOLDING FOELIES OF LIQUID CRYSTAL WITHOUT FOLDING. |
CA228,847A CA1055589A (en) | 1974-06-11 | 1975-06-09 | Device for the fold-free stretching and holding of liquid crystal films |
AT435475A AT338345B (en) | 1974-06-11 | 1975-06-09 | DEVICE FOR WRAPPING AND HOLDING LIQUID CRYSTAL FILMS |
FI751703A FI751703A (en) | 1974-06-11 | 1975-06-09 | |
IT24155/75A IT1038804B (en) | 1974-06-11 | 1975-06-09 | DEVICE FOR STRETCHING AND HOLDING LIQUID GLASS SHEETS WITHOUT BENDS |
JP50069248A JPS5830046B2 (en) | 1974-06-11 | 1975-06-10 | EXIYOFU OIL |
IE1301/75A IE41154B1 (en) | 1974-06-11 | 1975-06-10 | A device for the fold-free stretching and holding of liquid crystal films |
SE7506632A SE400892B (en) | 1974-06-11 | 1975-06-10 | DEVICE FOR WEEKLY TENSIONING AND HOLDING OF LIQUID CRYSTAL FILES |
DK260075A DK141353C (en) | 1974-06-11 | 1975-06-10 | APPLICATION FOR FULL-EXPOSURE AND HOLDING OF LIQUID CRYSTAL FILMS |
FR7518291A FR2274262A1 (en) | 1974-06-11 | 1975-06-11 | DEVICE FOR STRAIGHTENING AND FIXING WITHOUT FOLDING SHEETS OF LIQUID CRYSTALS |
US05/703,152 US4079529A (en) | 1974-06-11 | 1976-07-07 | Device for the fold-free stretching and holding of liquid crystal films |
US05/953,283 USRE30476E (en) | 1974-06-11 | 1978-10-20 | Devices for the fold-free stretching and holding of liquid crystal films |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742428235 DE2428235A1 (en) | 1974-06-11 | 1974-06-11 | DEVICE FOR WRAPPING AND HOLDING LIQUID CRYSTAL FILMS |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2428235A1 true DE2428235A1 (en) | 1976-01-02 |
DE2428235B2 DE2428235B2 (en) | 1979-03-29 |
DE2428235C3 DE2428235C3 (en) | 1979-11-15 |
Family
ID=5917883
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19742428235 Granted DE2428235A1 (en) | 1974-06-11 | 1974-06-11 | DEVICE FOR WRAPPING AND HOLDING LIQUID CRYSTAL FILMS |
Country Status (16)
Country | Link |
---|---|
JP (1) | JPS5830046B2 (en) |
AT (1) | AT338345B (en) |
BE (1) | BE830009A (en) |
CA (1) | CA1055589A (en) |
CH (1) | CH585896A5 (en) |
DE (1) | DE2428235A1 (en) |
DK (1) | DK141353C (en) |
FI (1) | FI751703A (en) |
FR (1) | FR2274262A1 (en) |
GB (1) | GB1469910A (en) |
IE (1) | IE41154B1 (en) |
IT (1) | IT1038804B (en) |
LU (1) | LU72674A1 (en) |
NL (1) | NL7506835A (en) |
NO (1) | NO751915L (en) |
SE (1) | SE400892B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5681312A (en) * | 1979-12-04 | 1981-07-03 | Nippon Oil Co Ltd | Production of polyolefin |
CN106245240B (en) * | 2016-10-31 | 2019-03-01 | 安徽艾丽格斯服饰有限公司 | A kind of straight neck sewing pattern plate bolster that cooperation sewing machine syringe needle motion track uses |
-
1974
- 1974-06-11 DE DE19742428235 patent/DE2428235A1/en active Granted
-
1975
- 1975-05-20 CH CH644375A patent/CH585896A5/xx not_active IP Right Cessation
- 1975-05-22 GB GB2217375A patent/GB1469910A/en not_active Expired
- 1975-05-30 NO NO751915A patent/NO751915L/no unknown
- 1975-06-09 NL NL7506835A patent/NL7506835A/en not_active Application Discontinuation
- 1975-06-09 BE BE157141A patent/BE830009A/en not_active IP Right Cessation
- 1975-06-09 CA CA228,847A patent/CA1055589A/en not_active Expired
- 1975-06-09 LU LU72674A patent/LU72674A1/xx unknown
- 1975-06-09 FI FI751703A patent/FI751703A/fi not_active Application Discontinuation
- 1975-06-09 IT IT24155/75A patent/IT1038804B/en active
- 1975-06-09 AT AT435475A patent/AT338345B/en not_active IP Right Cessation
- 1975-06-10 IE IE1301/75A patent/IE41154B1/en unknown
- 1975-06-10 SE SE7506632A patent/SE400892B/en unknown
- 1975-06-10 DK DK260075A patent/DK141353C/en active
- 1975-06-10 JP JP50069248A patent/JPS5830046B2/en not_active Expired
- 1975-06-11 FR FR7518291A patent/FR2274262A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
FI751703A (en) | 1975-12-12 |
DE2428235C3 (en) | 1979-11-15 |
ATA435475A (en) | 1976-12-15 |
GB1469910A (en) | 1977-04-06 |
DE2428235B2 (en) | 1979-03-29 |
IT1038804B (en) | 1979-11-30 |
NO751915L (en) | 1975-12-12 |
DK260075A (en) | 1975-12-12 |
SE7506632L (en) | 1975-12-12 |
AT338345B (en) | 1977-08-25 |
BE830009A (en) | 1975-12-09 |
CA1055589A (en) | 1979-05-29 |
CH585896A5 (en) | 1977-03-15 |
DK141353B (en) | 1980-03-03 |
SE400892B (en) | 1978-04-17 |
FR2274262A1 (en) | 1976-01-09 |
JPS5113193A (en) | 1976-02-02 |
DK141353C (en) | 1980-09-01 |
IE41154B1 (en) | 1979-10-24 |
JPS5830046B2 (en) | 1983-06-27 |
LU72674A1 (en) | 1976-03-17 |
IE41154L (en) | 1975-12-11 |
FR2274262B1 (en) | 1981-05-22 |
NL7506835A (en) | 1975-12-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) | ||
8339 | Ceased/non-payment of the annual fee |