DE526051C - Process for the production of elastic balls, in particular foot balls - Google Patents
Process for the production of elastic balls, in particular foot ballsInfo
- Publication number
- DE526051C DE526051C DENDAT526051D DE526051DD DE526051C DE 526051 C DE526051 C DE 526051C DE NDAT526051 D DENDAT526051 D DE NDAT526051D DE 526051D D DE526051D D DE 526051DD DE 526051 C DE526051 C DE 526051C
- Authority
- DE
- Germany
- Prior art keywords
- balls
- production
- strips
- elastic
- particular foot
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D22/00—Producing hollow articles
- B29D22/04—Spherical articles, e.g. balls
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Description
Es gibt bereits Verfahren zur Herstellung, elastischer Bälle aus zwei rechteckigen, mit
halbkreisförmig abgerundeten Enden versehenen unvulkanisierten Gummistreifen.
Die Erfindung bezieht sich auf ein Verfahren der vorgenannten Art. Erfindungsgemäß
werden die Streifen aus vulkanisierten Kautschukplatten ausgeschnitten, in bekannter
Weise zylindrisch gebogen und kreuzweise anThere are already processes for the production of elastic balls from two rectangular unvulcanized rubber strips provided with semicircular rounded ends.
The invention relates to a method of the aforementioned type. According to the invention, the strips are cut out of vulcanized rubber sheets, bent cylindrically in a known manner and crosswise
ίο ihren Rändern aufeinander verklebt, worauf der so entstandene Hohlkörper aufgeblasen wird, bis er die gewünschte kugelige Form angenommen hat. Es können bei diesem Verfahren insbesondere alte Automobilluftschläuche aufgebraucht werden, so daß das Verfahren den Vorteil gewährt, daß die herzustellenden Bälle, die keinen weiteren Überzug benötigen und in sehr starker Ausführung geliefert werden können, mit den geringstenίο their edges glued together, on what the resulting hollow body is inflated until it has the desired spherical shape Has. In particular, old automobile air hoses can be used up in this process, so that the The process affords the advantage that the balls to be produced do not require any further coating need and can be supplied in very strong execution, with the least
*° Kosten herzustellen sind.* ° costs are to be produced.
Ein erfmdungsgemäß hergestellter Ball ist in der beiliegenden Zeichnung in beispielsweiser Ausführungsform dargestellt, und zwar zeigt:A ball produced according to the invention is shown in the accompanying drawing in an example Embodiment shown, namely shows:
*5 Abb. ι eine Aufsicht auf die beiden Streifen, die die Hülle des Balles bilden,* 5 Fig. Ι a plan view of the two strips, which form the shell of the ball,
Abb. 2 eine in vergrößertem Maßstab gehaltene perspektivische Ansicht des Hohlkörpers nach dem Verkleben,Fig. 2 is a perspective view of the hollow body on an enlarged scale after gluing,
Abb. 3 eine Aufsicht in verkleinertem Maßstab auf den aufgeblasenen, fertigen Ball.Fig. 3 is a plan view on a reduced scale of the inflated, finished ball.
Bei dem gezeichneten Ausführungsbeispiel besteht der Ball aus zwei ebenen Streifen 2 und 3, die an den kürzeren, durch die punktierten Linien A-B (A' B') und C-D (C D') angedeuteten Seiten in halbkreisförmige Lappen auslaufen. Die Streifen 2 und 3 werden mit den üblichen Stanz- oder Schneidvorrichtungen aus Automobilluftschläuchen zurechtgeschnitten. Vor dem Zusammensetzen der Streifen wird ihre Oberfläche mit dem Sandstrahlgebläse, einer Schmirgelmaschine oder auf sonstige Weise gereinigt. Die Streifen 2 und 3 werden dann so zusammengeleimt, daß ein in sich völlig geschlossener Körper entsteht, wie er in Abb. 2 dargestellt ist. Zum Aneinanderkleben der Streifen eignet sich eine an sich bekannte Paralösung mit einem Zusatz von 7 °/o Schwefelkohlenstoff und io°/0 Benzol, die eine selbsttätige Kaltvulkanisation der Verbindungsstellen ermöglicht. Zum Aufblasen des Balles mit Hilfe einer Hohlnadel ist ein Rohgummistopfen 4 vorgesehen.In the illustrated embodiment, the ball consists of two flat strips 2 and 3, which terminate in semicircular lobes on the shorter sides indicated by the dotted lines AB (A 'B') and CD (C D '). The strips 2 and 3 are cut to size from automobile air hoses using conventional punching or cutting devices. Before assembling the strips, their surface is cleaned with a sandblasting machine, a sanding machine or in some other way. The strips 2 and 3 are then glued together in such a way that a completely self-contained body is created, as shown in Fig. 2. For adhering the strip to a known solution is para ° / o of carbon disulfide with an addition of 7 and io ° / 0 benzene, which allows an automatic cold vulcanization of the connection points. A raw rubber stopper 4 is provided for inflating the ball with the aid of a hollow needle.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE526051T |
Publications (1)
Publication Number | Publication Date |
---|---|
DE526051C true DE526051C (en) | 1931-06-01 |
Family
ID=6552817
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT526051D Expired DE526051C (en) | Process for the production of elastic balls, in particular foot balls |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE526051C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE965165C (en) * | 1949-02-01 | 1957-06-06 | Theodor Rodehueser | Process for the production of rubber balls or similar hollow bodies |
-
0
- DE DENDAT526051D patent/DE526051C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE965165C (en) * | 1949-02-01 | 1957-06-06 | Theodor Rodehueser | Process for the production of rubber balls or similar hollow bodies |
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