DE818465C - Process for producing play and sports balls - Google Patents
Process for producing play and sports ballsInfo
- Publication number
- DE818465C DE818465C DEC440A DEC0000440A DE818465C DE 818465 C DE818465 C DE 818465C DE C440 A DEC440 A DE C440A DE C0000440 A DEC0000440 A DE C0000440A DE 818465 C DE818465 C DE 818465C
- Authority
- DE
- Germany
- Prior art keywords
- ball
- vulcanized
- sports balls
- butyl rubber
- blowing agent
- 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
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B39/00—Hollow non-inflatable balls, i.e. having no valves
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
Verfahren zum Herstellen von Spiel- und Sportbällen Zusatz zum Patent 812 236 Die Erfindung betrifft eine Weiterbildung des Verfahrens nach dem Hauptpatent 812236 zur Herstellung von Spiel- oder Sportbällen mit einem geschlossenen Ballhohlkörper aus Kautschukmischung, die einen Innenhohlkörper aus einem Stoff hoher Undurchlässigkeit, wie Butylkautschuk, besitzen.Method for the production of game and sports balls Addition to patent 812 236 The invention relates to a further development of the method according to the main patent 812236 for the production of game or sports balls with a closed ball hollow body made of a rubber mixture, which has an inner hollow body made of a material with high impermeability, such as butyl rubber, own.
Diese Weiterbildung soll sicherstellen, daB im fertigen Ball die Innenhülle aus Butylkautschuk auch tatsächlich geschlossen ist und nicht im Laufe des Herstellungsganges durch irgendwelche Einflüsse offene Stellen in der Butylkautschukhülle entstanden sein können. Sie besteht darin, daß zunächst die Ballhülle aus der Butylkautschukmischung mit geringerem als dem Fertigdurchmesser des Balles vulkanisiert oder vorvulkanisiert, dann eine Blähmittellösung in diese Ballhülle eingespritzt und nach dem Auflegen der Kautschukhülle fertigvulkanisiert und dabei auf den Solldurchmesser aufgebläht wird. Um die Blähmittellösung vor dem zweiten Vulkanisationsvorgang in sicherer Weise einspritzen zu können, ist die Butylkautschukhülle mit einem Stopfen versehen, wie es auch sonst bei der Ballherstellung gebräuchlich ist.This development is intended to ensure that the inner shell in the finished ball made of butyl rubber is actually closed and not in the course of the production process Open spots in the butyl rubber cover were created by any influences could be. It consists in that first the ball cover is made of the butyl rubber mixture vulcanized or pre-vulcanized with a smaller than the finished diameter of the ball, Then a blowing agent solution is injected into this ball cover and after it is put on the rubber cover is fully vulcanized and inflated to the target diameter will. To get the blowing agent solution in safer before the second vulcanization process Way to be able to inject, the butyl rubber sleeve is provided with a stopper, as it is usually used in ball production.
Der Herstellungsvorgang ist im einzelnen wie folgt: Auf einer Ballmaschine wird aus einer Platte einer Butylkautschukmischung ein Körper kugeliger Hohlform hergestellt und mit einem Blähmittel gefüllt. Dieser Hohlkörper wird dann in einer Ballform von z. B. q." Innendurchmesser vulkanisiert.The manufacturing process is as follows: On a ball machine A body of spherical hollow shape is made from a plate of a butyl rubber mixture made and filled with a blowing agent. This hollow body is then in a ball shape of z. B. q. "Inside diameter vulcanized.
Nach dem Herausnehmen aus der Form wird in diesen Butylkautschukhohlkörper eine zweite Charge eines flüssigen Blähmittels mittels einer Hohlnadel eingespritzt und auf den Hohlkörper eine Hülle aus normaler Kautschukmischung, wie sie zur Herstellung von Bällen gebräuchlich ist, aufkonfektioniert. Sodann wird dieser zweischichtige Hohlkörper in eine Ballform von q'/2' Innendurchmesser verbracht und darin durch Erhitzen fertigvulkanisiert, wobei das eingespritzte Blähmittel die Ausdehnung des Hohlkörpers und dessen feste Anlage an die Formwandung bewirkt.After removal from the mold, butyl rubber hollow body is placed in this a second batch of a liquid blowing agent is injected using a hollow needle and on the hollow body a shell made of normal rubber mixture, as is used for production is commonly used by balls. Then this is two-tiered Hollow body brought into a ball shape of q '/ 2' inside diameter and through it Heating finished vulcanized, whereby the injected blowing agent the expansion of the Causes hollow body and its firm contact with the mold wall.
Es liegt im Rahmen der Erfindung, an Stelle eines flüssigen Blähmittels auch ein solches anderen Aggregatzustandes zu verwenden.It is within the scope of the invention to replace a liquid blowing agent also to use such a different aggregate state.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEC440A DE818465C (en) | 1950-01-20 | 1950-01-20 | Process for producing play and sports balls |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEC440A DE818465C (en) | 1950-01-20 | 1950-01-20 | Process for producing play and sports balls |
Publications (1)
Publication Number | Publication Date |
---|---|
DE818465C true DE818465C (en) | 1951-10-25 |
Family
ID=7012331
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEC440A Expired DE818465C (en) | 1950-01-20 | 1950-01-20 | Process for producing play and sports balls |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE818465C (en) |
-
1950
- 1950-01-20 DE DEC440A patent/DE818465C/en not_active Expired
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