Fuel tank manufacturing method
By integrating the protector with the multilayer resin fuel tank during blow forming, the method addresses the complexity and cost issues of conventional attachment methods, achieving a more efficient and cost-effective fuel tank manufacturing process.
JP2026099150APending Publication Date: 2026-06-18TOYOTA JIDOSHA KK
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- TOYOTA JIDOSHA KK
- Filing Date
- 2024-12-06
- Publication Date
- 2026-06-18
AI Technical Summary
Technical Problem
Existing fuel tank manufacturing methods require multiple parts and processes due to the attachment of a protector using clamping or screw fastening, increasing complexity and costs.
Method used
Integrate the protector with the outermost layer of the multilayer resin fuel tank using vacuum forming, and directly weld it to the fuel tank during blow forming, eliminating the need for separate attachment steps.
Benefits of technology
Reduces the number of parts and manufacturing steps, thereby lowering costs and simplifying the process.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 2026099150000001_ABST
Abstract
To provide a method for manufacturing a fuel tank that can reduce the number of parts and manufacturing steps. [Solution] The method includes a preparation step of forming a protector 2 made of the same material as the outermost layer of a multilayer resin fuel tank 1 using vacuum molding technology, and a blowing step of forming the fuel tank 1 using blow molding technology. In the blowing step, the protector 2 is inserted into a mold (5) for forming a predetermined surface of the fuel tank 1, which is one of a plurality of molds (5, 6) for forming the fuel tank 1, and the resin raw material that will be the material of the fuel tank 1 is supplied into a cavity 8 made by the plurality of molds (5, 6) to form the fuel tank 1, and at the same time the protector 2 is directly welded to the predetermined surface of the fuel tank 1.
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