Bullet-proof door assembly for a vehicle body

A door assembly for mounting a lateral edge portion of a vehicle body, includes a door panel, a shield cover, a mounting rack, a flexible bulletproof sheet, and at least two stiff rods. The door panel includes an interior wall which has front and rear sides along a longitudinal direction. The shield cover is disposed to be spaced apart from the interior wall to define an elongate accommodation chamber therebetween which extends from the front side to the rear side. The mounting rack is detachably mounted on, and extends along the front side of the interior wall. The mounting rack has at least two lugs that extend in a transverse direction relative to the longitudinal direction. The lugs each define a mounting hole which faces towards the rear side of the interior wall. The flexible bulletproof sheet is disposed in the accommodating chamber and is of such a dimension as to overlay the shield cover. The flexible bulletproof sheet has left and right side portions along the longitudinal direction. The stiff rods are disposed on the flexible bulletproof sheet, and each have a left end to be inserted into a respective one of the mounting holes and a right end to be anchored to the rear side of the interior wall in such a manner as to stretch the bulletproof sheet longitudinally.

BACKGROUND OF THE INVENTION 
1. Field of the Invention 
The invention relates to a door assembly, more particularly to a 
bulletproof door assembly for a vehicle body. 
2. Description of the Related Art 
Conventionally, the bulletproof door assembly for a vehicle body is usually 
constructed simultaneously with the vehicle body during the manufacturing 
process of the vehicle body since such a door assembly is relatively heavy 
and the construction thereof includes several complicated procedures and 
results in great expense. Due to its high cost, the conventional 
bulletproof door assembly is unaffordable to a common car user for 
installation to his car. 
SUMMARY OF THE INVENTION 
Therefore, the object of this invention is to provide a bulletproof door 
assembly that is cheaper in cost and can be easily installed in a vehicle 
body to provide safety for the vehicle user. 
Accordingly, a door assembly of this invention is adapted to be mounted on 
a vehicle body along a lateral edge portion, and includes a door panel, a 
shield cover, a mounting rack, a flexible bulletproof sheet, and at least 
two stiff rods. The door panel includes an interior wall which has front 
and rear sides along a longitudinal direction and adapted to be proximate 
and distal to the lateral edge portion, respectively. The shield cover is 
disposed to be spaced apart from the interior wall to define an elongate 
accommodation chamber therebetween which extends from the front side to 
the rear side. The mounting rack is detachably mounted on, and extends 
along the front side of the interior wall. The mounting rack has at least 
two lugs that extend in a transverse direction relative to the 
longitudinal direction. The lugs each have a mounting hole which faces 
towards the rear side of the interior wall. The flexible bulletproof sheet 
is disposed in the accommodating chamber between the interior wall and the 
shield cover and is of such a dimension as to overlay the shield cover. 
The flexible bulletproof sheet has left and right side portions along the 
longitudinal direction. The stiff rods are disposed on the flexible 
bulletproof sheet, and each have a left end to be inserted into a 
respective one of the mounting holes and a right end to be anchored to the 
rear side of the interior wall in such a manner that the flexible 
bulletproof sheet is stretched out in the longitudinal direction. 
Preferably, the flexible bulletproof sheet is encased by a waterproof 
sheath. The waterproof sheath is further provided with two retaining 
pockets integrally formed therewith which extend along the longitudinal 
direction between the front and rear sides of the interior wall to permit 
extension of the stiff rods which facilitates mounting and stretching of 
the flexible bulletproof sheet.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
Referring to FIGS. 1, 2 and 5, a preferred embodiment of the bulletproof 
door assembly according to this invention is adapted to be mounted in 
vehicle body (not shown) along a lateral edge portion is shown. The 
bulletproof door assembly includes a door panel, a shield cover 11, a 
mounting rack 30, a flexible bulletproof sheet 20, and at least two stiff 
rods 41. 
As illustrated, the door panel includes an interior wall 12 which has front 
and rear sides 12F, 12R along a longitudinal direction and respectively 
adapted to be proximate and distal to the lateral edge portion of the 
vehicle body. 
The shield cover 11 is disposed to be spaced apart from the interior wall 
12 to define an elongate accommodation chamber 14 therebetween which 
extends from the front side 12F to the rear side 12R. 
The mounting rack 30 is detachably mounted on and extends along the front 
side 12F of the interior wall 12. The mounting rack 30 has three lugs 31 
that extend in a transverse direction relative to the longitudinal 
direction. Each of the lugs 31 defines a mounting hole which faces towards 
the rear side 12R of the interior wall 12. 
The flexible bulletproof sheet 20 is disposed in the accommodating chamber 
14 between the interior wall 12 and the shield cover 11 and is of such a 
dimension as to overlay the shield cover 11. The bulletproof sheet 20 has 
left and right side portions 20L, 20R along the longitudinal direction. 
Each of the stiff rods 41 is disposed on the bulletproof sheet 20, and has 
a left end 43 to be inserted into the respective mounting hole in the lug 
31 and a right end 42 to be anchored to the rear side 12R in such a manner 
that the flexible bulletproof sheet can be stretched out in the 
longitudinal direction. 
In the preferred embodiment, the bulletproof sheet 20 is encased by a 
waterproof sheath 21 that is generally made from a plastic material. Three 
retaining pockets 22 are provided on and integrally formed with the 
waterproof sheath 21 and extend along the longitudinal direction between 
the front and rear sides 12F, 12R of the interior wall 12 to permit 
extension of the stiff rods 41, which in turn, facilitate the mounting and 
stretching of the bulletproof sheet 20. 
Note that the bulletproof sheet 20 employed in this embodiment is similar 
to those used in the conventional bulletproof jacket except that the 
dimension is larger in order to conform with the door assembly of this 
invention. Since the bulletproof sheet 20 is to be inserted only after 
installation of the door assembly on the vehicle body, the interior wall 
12 is preferably provided with a plurality of through holes 121 via which 
the mounting rack 30 for holding the left side 20L of the bulletproof 
sheet 20 can be inserted. Thus, two front lugs 32 of the mounting rack 30 
can be fixed in two mounting holes 122 provided on the interior wall 12 by 
the use of bolts 33 and nuts 34. Similarly, the right ends 42 of the stiff 
rods 41 are screwed by the fastener bolts 43 in the screw holes 123 that 
are formed through the rear side 12R of the interior wall 12. 
Note that a glass panel 15 (see FIG. 2) and a device for raising up or 
lowering down the glass panel 15 for opening or closing a window of the 
door assembly are also mounted in the accommodating chamber 14. However, 
the presence of the bulletproof sheet 20 in the accommodating chamber 14 
does not affect the raising and lowering actions on the glass panel 15. 
As explained above, the bulletproof door assembly of this invention can be 
mounted on the vehicle body with little difficulty. Thus, the object of 
this invention is achieved. 
With this invention thus explained, it is apparent that numerous 
modifications and variations can be made without departing from the scope 
and spirit of this invention. It is therefore intended that this invention 
be limited only as indicated in the appended claims.