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Vehicle structure, especially chassis frame structure
| Details |
Inventors: Kumasaka, Hideyuki; Takao, Kouji; Kuriyama, Hiroshi;
Assignee: Nissan Motor Co., Ltd. (Yokohama, JP)
Primary Examiner: Rice; Kenneth R.
Assistant Examiner:
Attorney, Agent or Firm: Foley & Lardner, Schwartz, Jeffery, Schwaab, Mack, Blumenthal & Evans
A vehicle frame consists of three longitudinally separate frame sections, i.e., a front frame section, center frame section and a rear frame section. The frame sections are manufactured and assembled in the respective independent lines and painted and equipped with chassis sub-assemblies independently, whereby to constitute a front frame module, center frame module and a rear frame module, respectively. The frame modules are finally bolted together to constitute a complete chassis. |
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DETAILED DESCRIPTION In accordance with the present invention, there is provided a novel chassis structure which is constituted by three frame modules, i.
e.
, a front frame module, a center frame module and a rear frame module.
The front frame module has a front frame section and chassis sub-assemblies including an engine, wheels and a suspension system.
The front frame section has at the front end thereof bracket means.
The rear frame module has a rear frame section and chassis sub-assemblies including wheels and a suspension system.
The rear frame section has at the front end thereof bracket means.
The center frame module has a center frame section and is interposed between the front and rear frame modules.
The center frame section has at the front and rear ends thereof bracket means respectively joined with the bracket means at the rear and front ends of the front and rear frame sections.
The bracket means of the center frame module are mechanically fastened to the bracket means of the front and rear frame modules.
In accordance with the present invention, there is also provided a novel method of producing a chassis for an automotive vehicle.
The method comprises preparing front, center and rear frame sections which are separate from each other, painting the front, center and rear frame sections, installing chassis sub-assemblies on the front, center and rear frame sections, and mechanically fastening the front, center and rear frame sections to each other.
This structure is quite effective for solving the above noted problems inherent in the prior art structures.
It is accordingly an object of the present invention to provide a novel chassis structure which can be produced with ease and efficiency.
It is another object of the present invention to provide a novel chassis structure of the above described character which makes it possible to attain the installation and insepection of chassis sub-assemblies with ease and efficiency.
It is a further object of the present invention to provide a novel chassis structure of the above described character which can reduce the assembling expense considerably
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