DE585573C - Hollow spear composed of several parts - Google Patents

Hollow spear composed of several parts

Info

Publication number
DE585573C
DE585573C DED65433D DED0065433D DE585573C DE 585573 C DE585573 C DE 585573C DE D65433 D DED65433 D DE D65433D DE D0065433 D DED0065433 D DE D0065433D DE 585573 C DE585573 C DE 585573C
Authority
DE
Germany
Prior art keywords
spear
several parts
hollow
hollow spear
pressboard
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
Application number
DED65433D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Julius Dietrich & Hannak
Original Assignee
Julius Dietrich & Hannak
Publication date
Priority to DED65433D priority Critical patent/DE585573C/en
Application granted granted Critical
Publication of DE585573C publication Critical patent/DE585573C/en
Expired legal-status Critical Current

Links

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)
  • Storage Of Web-Like Or Filamentary Materials (AREA)

Description

An einen sportgerechten Wurfspeer werden große Anforderungen gestellt. Ein Wurfspeer muß vorschriftsmäßig 800 g schwer sein, dabei aber auch ungeheuer zähe und starr, damit seine Flugweite durch Verminderung von Schwingungen gesteigert wird. Es ist keine Seltenheit, daß ein Speer beim Wurf in der Luft zerbricht, wenn er durch falsche Abwurftechnik zu viel Schwingungen erhält.Great demands are made on a javelin suitable for sports. A throwing spear must weigh 800 g according to the regulations, but also extremely tough and rigid, so that its flight range is reduced is increased by vibrations. It is not uncommon for a spear to be thrown breaks in the air if it receives too much vibrations due to the wrong throwing technique.

Um dem Speere größte Stabilität zu verleihen, ihn also bruchsicherer zu machen, als das mit bekannten Konstruktionen bisher möglich war, ist die neue Speerkonstruktion geschaffen worden. Der Wurfspeer« ist aus verschiedenen Holzarten mehrteilig zusammengesetzt. In seiner ganzen Länge sind Streifen b vorwiegend rechteckigen Querschnittes aus Vulkanfiber oder auch aus Preßspan kreuzweise zwischen die Holzteile eingefügt und mit diesen fest verbunden und verleimt.In order to give the spear the greatest stability, i.e. to make it more shatterproof than was previously possible with known constructions, the new spear construction was created. The throwing spear is made up of several different types of wood. Over its entire length, strips b of predominantly rectangular cross-section made of vulcanized fiber or pressboard are inserted crosswise between the wooden parts and firmly connected and glued to them.

Im Innern des Speeres α ist zwecks Gewichtserleichterung bzw. um dem Speer bei seinem vorgeschriebenen Gewicht einen größeren Umfang zu geben, damit er starrer wird, ein Hohlraum c angeordnet, der in Längsrichtung des "Speeres verläuft und sich im wesentlichen nur längs des stärkeren Speermittelteiles Mn erstreckt und vor den Endteilen bei d und e aufhört.Inside the spear α a cavity c is arranged in order to reduce weight or to give the spear at its prescribed weight a larger circumference so that it becomes more rigid, a cavity c which runs in the longitudinal direction of the "spear and extends essentially only along the stronger spear middle part Mn extends and ends before the end parts at d and e.

Claims (1)

Patentanspruch:Claim: Mehrteilig zusammengesetzter Hohlspeer, dadurch gekennzeichnet, daß der Speer aus verschiedenen Holzarten und mit kreuzweise eingelegten Zwischenverbindungen aus Vulkanfiber- oder Preßspanstreifen, vorwiegend rechteckigen Querschnittes, in seiner Gesamtlänge zusammengesetzt und im Innern mit einem im wesentlichen sich nur über den stärkeren Speermittelteil erstreckenden, leer bleibenden HoMraume versehen ist.Hollow spear composed of several parts, characterized in that the Spear made of different types of wood and with interconnections inlaid crosswise from vulcanized fiber or pressboard strips, predominantly rectangular cross-section, composed in its total length and inside with an empty one that extends essentially only over the thicker spear central part permanent HoMraume is provided.
DED65433D Hollow spear composed of several parts Expired DE585573C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED65433D DE585573C (en) Hollow spear composed of several parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED65433D DE585573C (en) Hollow spear composed of several parts

Publications (1)

Publication Number Publication Date
DE585573C true DE585573C (en) 1933-10-05

Family

ID=7059206

Family Applications (1)

Application Number Title Priority Date Filing Date
DED65433D Expired DE585573C (en) Hollow spear composed of several parts

Country Status (1)

Country Link
DE (1) DE585573C (en)

Similar Documents

Publication Publication Date Title
DE585573C (en) Hollow spear composed of several parts
DE422850C (en) Tires as throwing toys
DE633754C (en) Toy plane that can be shot from a blowpipe
DE332539C (en) Propellers for aircraft
DE618639C (en) Baking board made of plywood sheets
DE624667C (en) Aircraft landing area
AT280110B (en) Skittles for skittles
DE640425C (en) Fuel container that can be dropped from an aircraft in flight
DE634098C (en) Spin game with two independently operated spin devices
DE459240C (en) Procedure for assembling two cage parts
DE595346C (en) Spherical top
DE467308C (en) Device for absorbing forces from flowing media
DE413813C (en) Hockey stick glued from several layers of wood
DE587070C (en) Rubber thermophore
DE674553C (en) Insect catcher
DE2335624A1 (en) TOY IN THE SHAPE OF A BALL TRACK
DE461287C (en) Bullet trap for bowling alleys
DE501784C (en) Belt pulley with ventilation
DE974923C (en) Multi-part dolphins
AT49577B (en) Propeller.
DE961230C (en) Ring plate valve
AT106062B (en) Undercarriage for aircraft.
DE671080C (en) Gatekeeper for table hockey games to be operated from above by means of a shaft
DE838714C (en) Multi-layer ski
DE1789552U (en) AIRPLANE TOY.