Main floor assembly

Main floor assembly
This is the passenger-carrying section of the main floor. It runs backwards from the toe panel to the heelboard or back seat assembly. It is strengthened to carry the two front seats, and in some cases may have a transmission tunnel running through its centre. Strength is built into the floor by the transmission tunnel acting like an inverted channel section. The body sill panels provide extra reinforcement in the form of lateral strength.
Transverse strength is provided by box sections at right angles to the transmission tunnel, generally in the areas of the front seat and in front of the rear seat. The remaining areas of flat floor are ribbed below the seats and in the foot wells to add stiffness (Figure 1.46).

Figure 1.46 Main floor assemblies and boot floor assemblies (Proton)
1 Reinf. parking brake lever
2 Crossmember assy backbone
3 Reinf. assy backbone
4 Bracket A-Frame LH
5 Bracket A-Frame RH
6 Pan front floor
7 Crossmember assy front floor front RH
8 Crossmember assy front floor rear RH
9 Crossmember assy front floor rear LH
10 Crossmember assy front floor front LH
11 Reinf. seat belt side LH/RH
12 Bracket anti zipper
13 Sill front floor side inner LH/RH
14 Reinf. sidemember front floor LH/RH
15 Sidemember front floor LH/RH
NOTE:
A large reinforcement has been added to the front floor backbone (Reinforcement assy backbone), and this is
coupled with the side sill, sidemember and crossmember to provide increased rigidity to the total floor.