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Method for producing a plastic frame for a two-wheeled vehicle

A two-wheeled, plastic technology, used in bicycle racks, bicycle accessories, other household appliances, etc., can solve the problems of non-recycling, no reasonable recycling method for parts, etc., to shorten the total time, shorten the cooling time, and quickly cool down. effect of time

Active Publication Date: 2018-03-16
PLASTIC INNOVATION GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Bicycle frames comprising a thermosetting matrix material have the great disadvantage that, due to the material chosen, they cannot be recycled reasonably
Apart from heat utilization by combustion, there is no rational way of recycling the correspondingly manufactured components

Method used

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  • Method for producing a plastic frame for a two-wheeled vehicle
  • Method for producing a plastic frame for a two-wheeled vehicle
  • Method for producing a plastic frame for a two-wheeled vehicle

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Embodiment Construction

[0035] According to the general method route of the method for manufacturing the plastic frame of a two-wheeled vehicle according to the present invention, reference can be made to the Figure 1 to Figure 5 The first embodiment of the present invention will be explained.

[0036] therefore figure 1 A frame 10 of a women's bicycle is schematically shown in . Rear wheels 12 arranged at the rear of the frame are shown schematically. figure 1 It is shown, but not in detail, that the thermoplastic melt has just been injected into the closed forming tool. Simultaneously, slides or cores 14, 16 and 18 have been pushed into the forming tool in the direction of the respective arrows in order to prevent injected plastic melt from penetrating into this area. Sliders 14 and 16 here form a cavity for turning the head bearing; slider 18 forms a cavity for receiving a seat tube to be installed later; and slider 20 inserted perpendicular to the plane of the figure forms a later The hollo...

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Abstract

The invention relates to a method for producing a plastic frame for a two-wheeled vehicle by means of plastic injection molding, said plastic frame having at least one cavity in the interior, said method comprising a series of steps, wherein, after a preferably thermoplastic plastic melt has been injected into a closed injection-molding tool, a fluid is injected in order to displace the plastic core out of the component cavity.

Description

technical field [0001] The invention relates to a method of manufacturing a plastic frame of a two-wheeled vehicle having at least one hollow space inside. On the one hand, a two-wheeled vehicle in the sense of the invention may be a conventional bicycle or an electric bicycle. However, a two-wheeled vehicle can also be understood as a two-wheeled vehicle with an electric motor / motor, such as a motor-assisted bicycle, moped or motorcycle. Background technique [0002] It is known to manufacture bicycle frames from plastic. For this purpose, a resin infusion process known under the name "resin transfer molding" (RTM) is generally used. In this method, fiberglass fabrics and / or carbon fiber fabrics are placed into a forming tool. When using closed tools, the fabric is saturated with a thermoset matrix material such as epoxy or polyurethane that is injected into the tool. Thermoset matrix materials generally contain two basic substances that must be thoroughly mixed with ea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/00B29C45/14B29C45/17B62K19/16B62K19/30B29L31/30
CPCB29C45/0046B29C45/14631B29C45/14688B29C45/14786B29C45/1704B62K19/16B62K19/30B29C2045/1726B29C2045/1727B29C2045/1707B29C2045/1712B29C2045/1713B29C2045/0087B29L2031/3091B29C45/1706B29C45/1711B29C2045/1719B29C2045/1723
Inventor 克里斯帝安·沃尔夫斯伯格
Owner PLASTIC INNOVATION GMBH
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