DE475103C - Shaft for throwing spears - Google Patents
Shaft for throwing spearsInfo
- Publication number
- DE475103C DE475103C DES84324D DES0084324D DE475103C DE 475103 C DE475103 C DE 475103C DE S84324 D DES84324 D DE S84324D DE S0084324 D DES0084324 D DE S0084324D DE 475103 C DE475103 C DE 475103C
- Authority
- DE
- Germany
- Prior art keywords
- shaft
- throwing
- spears
- wood
- resistant material
- 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
- 239000002023 wood Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 206010041662 Splinter Diseases 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B65/00—Implements for throwing ; Mechanical projectors, e.g. using spring force
- A63B65/02—Spears or the like ; Javelins
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Walking Sticks, Umbrellas, And Fans (AREA)
Description
Schaft für Wurf-Speere. Es sind Wurf-Speere bekannt, deren Schaft teils aus einem Stück Holz, teils verleimt und innen hohl, oder mit einem sogenannten Kern aus Rohroder mit sonstigem Material durchzogen sind.Shaft for throwing spears. Throwing spears are known whose shaft partly from one piece of wood, partly glued and hollow on the inside, or with a so-called Core made of pipe or with other material.
Die erstere Art Wurf-Speere hat den Nachteil, daß diese bei einem ungünstigen Aufschlag auf den Boden sehr leicht splittern" evtl. an dar Spitze oder am Ende abbrechen können, Die letztgenannte Art der Speere mit Kern haben dagegen den großen Nachteil, daß sie beim Abwurfe durch die Stoßkraft vom Arme des Werfers in Schwingungen, sogenanntes Flattern, kommen, wodurch eine schöne Flugbahn und die Wurfweite des' Speeres bedeutend h:erabgernindert wird. Durch diesen Nachteil ist selbstverständlich ein sicherer Verlaß auf den Speer durch den Werfer in Frage gestellt.The former type of throwing spears has the disadvantage that they are used in a unfavorable impact on the ground very easily splinter "possibly at the tip or at the end can break off, the latter type of core spears have against it the great disadvantage that they are when thrown by the impact force of the arms of the thrower come in vibrations, so-called flutter, creating a nice trajectory and the throwing range of the spear is significantly reduced. Because of this disadvantage is of course a sure reliance on the spear by the thrower in question posed.
Alle diese Nachteile sind erfahrungsgemäß durch die neue Zusammensetzung des Schaftes behoben. Die Anordnung dieser neuartigen Zusammensetzung ist in der Abb. i von vorn gesehen. Abb. z zeigt diese im Längsschnitt A-B, während die Abb. 3, q. und 5 je ;einen Horizontalschnitt C-D, EJ und G-H zeigen.Experience has shown that all these disadvantages are eliminated by the new composition of the shaft. The arrangement of this novel composition is seen from the front in Fig. I. Fig. Z shows this in longitudinal section AB, while Fig. 3, q. and 5 each; show a horizontal section CD, EJ and GH.
Der Schaft besteht aus zwei gleichen Teilen e (Abb. .i, Schnitt EJ), in deren Mitte je eine Nut eingefräst ist, in welche in kurzen Abständen (Abb. 2, Schnitt A-B) kurze, in die Nut passende Holzleistenäbschnitted (Abb. 2, Schnitt A-B) so eingesetzt werden, daß zwischen diesen Holzleisten d Hohlräume f entstehen, sogenannte Zellen. Durch diese sinngemäße Anordnung ist dem Schaft eine erhöhte Stabilität gegeben, d. h. ein Splittern des Schaftes in sich selbst ist dadurch ausgeschlossen. Dem Abbrechen der Spitze oder Ende des Schaftes ist dadurch vorgebeugt, da.ß die Spitze o des Schaftes e quadratisch (Abb. 5, Schnitt G-H) zugespitzt und Rohrholz b oder sonst besonders widerstandsfähiges Holz aufgeleimt ist. Das Ende des Schaftes ist von der Stirnseite (Abb. 3, Schnitt C-D-) in der Mitte im rechten Winkel zueinander versetzt keilförmig eingesägt (s. Abb. ia) und ebenfalls Rohrholz oder sonst stark widerstandsfähiges Material eingesetzt.The shaft consists of two equal parts e (Fig. .I, section EJ), in the middle of each of which a groove is milled, in which short wooden strips fitting into the groove at short intervals (Fig. 2, section AB) (Fig. 2, section AB) are used in such a way that cavities f, so-called cells, arise between these wooden strips d. This analogous arrangement gives the shaft increased stability, ie splintering of the shaft in itself is excluded. Breaking off the tip or end of the shaft is prevented by the fact that the tip o of the shaft e is square (Fig. 5, section GH) and cane b or other particularly resistant wood is glued on. The end of the shaft is sawn in a wedge shape from the front (Fig. 3, section CD-) in the middle at right angles to each other (see Fig. Ia) and cane wood or other highly resistant material is also used.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES84324D DE475103C (en) | Shaft for throwing spears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES84324D DE475103C (en) | Shaft for throwing spears |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE475103C true DE475103C (en) | 1929-04-20 |
Family
ID=7511628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DES84324D Expired DE475103C (en) | Shaft for throwing spears |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE475103C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4333643A (en) * | 1980-02-19 | 1982-06-08 | Victor Saffire | Javelin |
| US4337940A (en) * | 1980-10-23 | 1982-07-06 | Soong Tsai C | Javelin |
| US4404053A (en) * | 1980-02-19 | 1983-09-13 | Victor Saffire | Method of making a javelin |
| FR2740348A1 (en) * | 1995-10-25 | 1997-04-30 | Buster | Javelin with shaft made in reinforced synthetic material |
-
0
- DE DES84324D patent/DE475103C/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4333643A (en) * | 1980-02-19 | 1982-06-08 | Victor Saffire | Javelin |
| US4404053A (en) * | 1980-02-19 | 1983-09-13 | Victor Saffire | Method of making a javelin |
| US4337940A (en) * | 1980-10-23 | 1982-07-06 | Soong Tsai C | Javelin |
| FR2740348A1 (en) * | 1995-10-25 | 1997-04-30 | Buster | Javelin with shaft made in reinforced synthetic material |
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