DE1736966U - PROPELLER FOR PLAY AND MODEL AIRPLANES. - Google Patents
PROPELLER FOR PLAY AND MODEL AIRPLANES.Info
- Publication number
- DE1736966U DE1736966U DESCH18381U DESC018381U DE1736966U DE 1736966 U DE1736966 U DE 1736966U DE SCH18381 U DESCH18381 U DE SCH18381U DE SC018381 U DESC018381 U DE SC018381U DE 1736966 U DE1736966 U DE 1736966U
- Authority
- DE
- Germany
- Prior art keywords
- propeller
- leaf
- play
- leaves
- model
- 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
Links
- 229920003002 synthetic resin Polymers 0.000 claims description 4
- 239000000057 synthetic resin Substances 0.000 claims description 4
- 238000005452 bending Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H27/00—Toy aircraft; Other flying toys
- A63H27/02—Model aircraft
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H27/00—Toy aircraft; Other flying toys
- A63H27/001—Making or assembling thereof, e.g. by folding
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H27/00—Toy aircraft; Other flying toys
- A63H27/12—Helicopters ; Flying tops
Landscapes
- Toys (AREA)
Description
to.53V957.219.56. I to.53V957.219.56. I.
!Luftschraube für Spiel- und Modell-STugzeuge.! Propeller for toy and model aircraft.
Gebrauchsmuster betrifft eine Luftschraube für Spiel*. ; und Modell-Flugzeuge«Üblich ist.es, diese Luftschraube aus Holz oder Kunstharz herzustellen. Bekannte Luftschrauben aus Kunstharz sind bezüglich ihrer Abmessungen dem Vorbild nachgebildet* Davon abweichend ist das Gebrauchsmuster nach-Erkenntnissen geformt, die aus der Erfahrung entspringen, daß !luftschrauben von Modellen Beanspruchungen ausgesetzt sind, die beim Vorbild nicht auftreten» So soll beispielsweise eine Modell-Luftschraube deshalb außergewöhnlich elastisch sein» weil es erwünscht ist,, daß sie auch Stöße bruchsicher auffangt, die aus Sturzlandungen des Modelles herrühren* Es muß mithin die Arbeitsaufnahme eines als Feder wirkenden Schraubenblattes hoch sein. Darüberhinaus sollen die Umrisse von luftschrauben aus Kunstharz vom Crießförmbauer möglichst.. leicht übersehbar sein, denn eine Kleinstluftschraube ist auf Asymmetrie ganz besonders empfindlich; die Wettbewerbsbedingungen bei Flugwettbewerben sind in dem Sinne gehalten, daß oft der bessere Wirkungsgrad-der Luftsehraube der für den Gewinn des Wettbewerbes entscheidendere Faktor,ist* Schließlich soll eine Luftschraube aus Kunststoff leicht entgratbar sein» wobei die beim Entgraten durch Spanabhebung entstehenden Flächen klein und außerdem einwandfrei glatt sein müssen.Utility model concerns a propeller for play *. ; and model airplanes «It is customary to make this propeller out To manufacture wood or synthetic resin. Well-known propellers made of synthetic resin are modeled on the model in terms of their dimensions * The utility model differs from this according to knowledge formed that arise from the experience that ! the propellers of models are exposed to stresses that do not occur in the prototype »For example, a Model propellers should therefore be extraordinarily elastic »because it is desirable, that they also absorb shocks in a break-proof manner, resulting from the model's fall landings * It must hence the start of a screw blade acting as a spring be high. In addition, the outlines of propellers made of synthetic resin by the Crießförmbauer should as possible .. be easily overlooked, because a tiny propeller is particularly sensitive to asymmetry; the competitive conditions in flight competitions are held in the sense that often the better efficiency of the air hood for the The more decisive factor in winning the competition is * Ultimately a plastic propeller should be easily deburrable »whereby the deburring results from chip removal Surfaces must be small and also perfectly smooth.
Von dieser Aufgabenstellung ausgehend ist das Gebrauchsmuster geschaffen worden, bei dem erfindungsgemäß der Nabendurchmesser der größten Blattbreite entspricht:, die NabenvorderflEche und die Vorderkanten der Blätter bis zur Blattspitzenrundung in einer Ebene erstrecken, die Jabenrückfläche und die Rückenkanten der Blätter in der Seitenansicht in einer einbuchtungslosen, konvexen Kurve verlaufen und die Blattrüekflaehen von der Blattwurzel oder wenigstens vom halben Luftschraubendurchmesser-aus beginnend nach/außen hin eben oder konkav geformt sind.Based on this task, the utility model has been created in which the hub diameter according to the invention the largest blade width corresponds to :, the hub front surface and the leading edges of the leaves up to the rounded tip of the leaf extend in one plane, the back surface and the back edges of the leaves in the side view run in an indented, convex curve and the leaves are flattened from the root of the blade or at least from half the propeller diameter - starting out / out evenly or are concave in shape.
» 2»2
Bei einem solchen Muster verlaufen die Grate mit Ausnahme von zwei kurzen, mantellinienförmigen und auf der Nabe sitzenden Graten an verhältnismäßig scharfen Kanten entlang, so daß von Flächen oder von Wölbungen mit größerem Krümmungsradius kein Grat entfernt werden muß.](Da die Blätter verhältnismäßig dünn und flach profiliert sind und da die Blätter sich im Bereiche ihrer Wurzel flach an die Nabe anschließen, haben sie eine große Biegelänge und somit bei ^turzlandungen des Modelles einen großen Federweg·With such a pattern, the ridges run exceptionally of two short, jacket-line shaped ones and one on the hub sitting ridges along relatively sharp edges, so that no burr has to be removed from surfaces or from bulges with a larger radius of curvature.] (Since the leaves are relatively thin and flat and because the leaves are flat against the hub in the area of their roots connect, they have a large bending length and thus at ^ crash landings of the model a large spring travel ·
Das beigefügte Muster weist die Merkmale auf* die in den Schutzansprüchen niedergelegt sind.The attached sample has the features * those in the Protection claims are laid down.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DESCH18381U DE1736966U (en) | 1956-09-28 | 1956-09-28 | PROPELLER FOR PLAY AND MODEL AIRPLANES. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DESCH18381U DE1736966U (en) | 1956-09-28 | 1956-09-28 | PROPELLER FOR PLAY AND MODEL AIRPLANES. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1736966U true DE1736966U (en) | 1956-12-27 |
Family
ID=32727927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DESCH18381U Expired DE1736966U (en) | 1956-09-28 | 1956-09-28 | PROPELLER FOR PLAY AND MODEL AIRPLANES. |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1736966U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8428270B2 (en) | 2006-04-27 | 2013-04-23 | Dolby Laboratories Licensing Corporation | Audio gain control using specific-loudness-based auditory event detection |
-
1956
- 1956-09-28 DE DESCH18381U patent/DE1736966U/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8428270B2 (en) | 2006-04-27 | 2013-04-23 | Dolby Laboratories Licensing Corporation | Audio gain control using specific-loudness-based auditory event detection |
| US9136810B2 (en) | 2006-04-27 | 2015-09-15 | Dolby Laboratories Licensing Corporation | Audio gain control using specific-loudness-based auditory event detection |
| US11711060B2 (en) | 2006-04-27 | 2023-07-25 | Dolby Laboratories Licensing Corporation | Audio control using auditory event detection |
| US12218642B2 (en) | 2006-04-27 | 2025-02-04 | Dolby Laboratories Licensing Corporation | Audio control using auditory event detection |
| US12283931B2 (en) | 2006-04-27 | 2025-04-22 | Dolby Laboratories Licensing Corporation | Audio control using auditory event detection |
| US12301189B2 (en) | 2006-04-27 | 2025-05-13 | Dolby Laboratories Licensing Corporation | Audio control using auditory event detection |
| US12301190B2 (en) | 2006-04-27 | 2025-05-13 | Dolby Laboratories Licensing Corporation | Audio control using auditory event detection |
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