GB2507956A - Modular construction of a semi moulded composite automotive vehicle tub. - Google Patents

Modular construction of a semi moulded composite automotive vehicle tub. Download PDF

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Publication number
GB2507956A
GB2507956A GB201219188A GB201219188A GB2507956A GB 2507956 A GB2507956 A GB 2507956A GB 201219188 A GB201219188 A GB 201219188A GB 201219188 A GB201219188 A GB 201219188A GB 2507956 A GB2507956 A GB 2507956A
Authority
GB
United Kingdom
Prior art keywords
tub
semi
automotive vehicle
modular construction
machined
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.)
Withdrawn
Application number
GB201219188A
Other versions
GB201219188D0 (en
Inventor
John Stewart Begley
Peter Jonathan Kent
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB201219188A priority Critical patent/GB2507956A/en
Publication of GB201219188D0 publication Critical patent/GB201219188D0/en
Publication of GB2507956A publication Critical patent/GB2507956A/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D23/00—Combined superstructure and frame, i.e. monocoque constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/04—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of synthetic material
    • B62D29/043—Superstructures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/04—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of synthetic material
    • B62D29/046—Combined superstructure and frame, i.e. monocoque constructions

Abstract

A new and simplified method to manufacture a structural composite automotive vehicle tub. Pre-machined bulkheads are used as the datum points for the tub assembly and are the only significant parts of the structure that require holding in a jig. This significantly reduces the amount of accurate jigging required for this type of application thus reducing assembly costs. These pre-machined front and rear bulkheads also eliminate the requirement for a final machining operation thus eliminating a production stage which in turn reduces time and costs.

Description

Title: Modular construction of a semi moulded composite automotive vehicle tub.
Background of the invention:
This invention relates to the method used to construct a moulded composite structural tub for an automotive vehicle. A tub is the central structural section of a vehicle chassis between the front and rear axles that contains the driver and controls.
Composite tubs are widely used in high-end automotive and racing car structures. They provide high strength to weight, but are expensive to manufacture and are only used in higher priced vehicles in low to medium volumes that can justify the increased cost in the bill of materials. They do provide a significant reduction in weight over a wholly steel or aluminium structure and therefore a performance and C02 advantage.
The cost of these structures can be attributed to four main areas: 1: Cost of raw material.
2: Manual labour and the processes involved in lay-up (lay-up is the term used to describe the method the raw materials are applied to create the structure).
3: Tooling and complex moulds to create the structure.
4: Multi-axis final machining to create the mounting points on the tub that the rest of the vehicle needs for final assembly.
Statement of invention:
In relation to the areas mentioned above this invention aims to answer the issues of cost by the following methods: -Having the ability to incorporate a selection of different materials in the construction, ranging in cost and dependent on the specific structural requirements.
-Reducing the labour and processes involved with lower technology manufactured individual components.
-Reducing the tooling and mould costs by having simpler component design.
-Eliminating the requirement for multi-axis final machining of mounting points on the tub and reducing the amount of essential jigging required to produce a component within the specified tolerances.
This invention has the main compartment bounded left and right by moulded structures. The front bulkhead, floors and rear bulkhead are made from pre-machined composite laminar panels. The front upper horizontal surface is made from either a composite laminar panel or a moulded component. The centre spine is a moulded component.
Advantages The pre-machined bulkheads are used as the datum points for the tub assembly and are the only significant parts of the structure that require holding in a jig. This significantly reduces the amount of accurate jigging required for this type of application thus reducing assembly costs. These pre-machined front and rear bulkheads also eliminate the requirement for a final machining operation thus eliminating a production stage which in turn reduces time and costs.
Introduction to drawings:
An example of the invention will now be described by referring to the accompanying drawings.
Figure 1 shows the elements that come together to create the assembled tub.
Figure 2 shows the jigging that is used to hold the dimensional accuracy required when the tub is final assembled.
Figure 3 shows the assembled tub.
Detailed description:
The following description is presented to enable any person skilled in the art to make and use the invention, and is provided in the context of a particular application. Various modifications to the disclosed embodiments will be readily apparent to those skilled in the ad.
The general principals defined herein may be applied to other embodiments and applications without departing from the spirit and scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
This invention relates to eliminating the final machining operation and reducing the amount of accurate jigging required for a semi-moulded composite vehicle tub. A tub is the central structural section of a vehicle chassis between the front and rear axles that contains the driver and controls.
A composite tub constructed in accordance with the present invention is shown in figure 1 which comprises of: 101 The moulded sidewalls. These ideally are a hollow moulded composite structure that may contain a lightweight medium to separate the inner and outer skins.
102 The front bulkhead made from a pre-machined structural panel pre-assembled with any fixings required.
103 The floor (which may comprise of multiple sections) made from pre-machined structural panels and pre-assembled with any fixings that are required.
104 The rear bulkhead made from a pre-machined structural panel. It may contain upper and lower structural members pre-assembled to this panel such that any fixings required are included.
The front upper horizontal panel which can be made from a pre-machined structural panel or a moulded composite panel.
106 The central spine component made from a hollow moulded composite panel that includes any fixings required.
Figure 1 shows an exemplary tub design in accordance with the principles described herein. The features, which allow the tub shown in Figure 1 to be assembled, will become apparent by considering Figure 1 in combination with Figure 2.
Figure 2 shows the basic components that comprise a jig to be used in the final assembly of the tub. This jig is used to hold the tub panels in place while they are bonded.
201 The base to which the other jig parts are mounted.
202 The front bulkhead stanchion.
203 The rear bulkhead stanchion.
Claims: 1: Elimination of final machining regarding the assembly of a bonded composite structure to create a tub for a vehicle.
2: Reduction in the amount of essential jigging required to assemble the above mentioned structure within required tolerances.

Claims (1)

  1. GB12191 888.8 Modular construction of a semi moulded composite vehicle tub.Claims: 1: Elimination of final machining regarding the assembly of a bonded composite structure to create a tub for a vehicle.
    2: Reduction in the amount of essential jigging required to assemble the above mentioned structure within required tolerances. C') r r
GB201219188A 2012-10-25 2012-10-25 Modular construction of a semi moulded composite automotive vehicle tub. Withdrawn GB2507956A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB201219188A GB2507956A (en) 2012-10-25 2012-10-25 Modular construction of a semi moulded composite automotive vehicle tub.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB201219188A GB2507956A (en) 2012-10-25 2012-10-25 Modular construction of a semi moulded composite automotive vehicle tub.

Publications (2)

Publication Number Publication Date
GB201219188D0 GB201219188D0 (en) 2012-12-12
GB2507956A true GB2507956A (en) 2014-05-21

Family

ID=47358629

Family Applications (1)

Application Number Title Priority Date Filing Date
GB201219188A Withdrawn GB2507956A (en) 2012-10-25 2012-10-25 Modular construction of a semi moulded composite automotive vehicle tub.

Country Status (1)

Country Link
GB (1) GB2507956A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3118619A1 (en) * 2021-01-05 2022-07-08 Yanara Technologies vehicle passenger cell

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0142581A1 (en) * 1981-07-06 1985-05-29 Paul F. Bonfilio Motor vehicle having modular chassis and body
GB2311966A (en) * 1996-04-11 1997-10-15 R J Designrights Limited Motor vehicle manufactured from modular plastics panels
WO2009024883A1 (en) * 2007-08-07 2009-02-26 Clamadue S.R.L. Manufacturing method of a motor vehicle and motor vehicle thereby obtained
WO2011113912A1 (en) * 2010-03-17 2011-09-22 Mclaren Automotive Limited Composite tub structure for vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0142581A1 (en) * 1981-07-06 1985-05-29 Paul F. Bonfilio Motor vehicle having modular chassis and body
GB2311966A (en) * 1996-04-11 1997-10-15 R J Designrights Limited Motor vehicle manufactured from modular plastics panels
WO2009024883A1 (en) * 2007-08-07 2009-02-26 Clamadue S.R.L. Manufacturing method of a motor vehicle and motor vehicle thereby obtained
WO2011113912A1 (en) * 2010-03-17 2011-09-22 Mclaren Automotive Limited Composite tub structure for vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3118619A1 (en) * 2021-01-05 2022-07-08 Yanara Technologies vehicle passenger cell

Also Published As

Publication number Publication date
GB201219188D0 (en) 2012-12-12

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Legal Events

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)