Positioning profiles for pultrusions in composite bus body
A method of forming a composite vehicle components (e.g. walls, floor, roof) having interleaved foam core members and pre-pultruded reinforcing pillars by pultruding the cores and pillars into a vehicle component (e.g. bus sidewall formed as integral component front to rear) and cutting apertures therein for insertion of vehicle accessories (e.g. windows). Also, vehicle components can be formed having interlocking profiled edges where a first component is inserted into a second component, and rotated to bring the two components into locking engagement. A plurality of components can be formed with the same geometry, and oriented 180 degrees offset from each other to bring their profiled edges adjacent to each other.
1 . A method of forming a composite vehicle component comprising:
pultruding a plurality of reinforcement structures, each reinforcement structure having opposing inner and outer surfaces defining a thickness therebetween, each reinforcement structure having a first edge and an opposing second edge extending between the thickness;
providing a plurality of core members, each core member having opposing inner and outer surfaces defining a thickness therebetween, each core member having a first edge and an opposing second edge extending between the thickness, wherein the plurality of core members includes foam;
positioning each core member of the plurality of core members between adjacent reinforcement structures, interlocking a first edge of a reinforcement structure with a first edge of a core member;
displacing the interlocked core members and reinforcement structures simultaneously; and
pultruding the interlocked reinforcement structures and core members together to apply an inner skin layer onto the inner layers of the reinforcement structures and core members, and an outer skin layer onto the outer layers of the reinforcement structures and core members.
2 . The method of claim 1 , further comprising forming an opening in at least one of the inner skin layer and outer skin layer, wherein the opening is positioned between adjacent reinforcement structures.
3 . The method of claim 1 , wherein at least one of the plurality of core members includes a window formed therein.
4 . The method of claim 3 , wherein the window includes a sacrificial coating disposed on at least one of the inner or outer surfaces, the sacrificial coating facilitating removal of at least one of the inner skin or outer skin layers of pultruded material.
5 . The method of claim 1 , wherein at least one of the reinforcement structures is hollow.
6 . The method of claim 1 , wherein at least one reinforcement structure is disposed parallel to at least one core member.
7 . The method of claim 1 , wherein at least one reinforcement structure is disposed perpendicular to at least one core member.
8 . The method of claim 1 , wherein at least one of the reinforcement structures is rectangular.
9 . The method of claim 1 , wherein the vehicle component has a non-planar profile.
10 . The method of claim 1 , wherein the vehicle component is a sidewall of a bus, formed as an integral component from a front location proximal to a front wheel of the bus to a location distal of a rear wheel well of the bus.
11 . A method of forming a composite vehicle component comprising:
pultruding a plurality of reinforcement structures, each reinforcement structure having opposing inner and outer surfaces defining a thickness therebetween;
providing a plurality of core members, each core member having opposing inner and outer surfaces defining a thickness therebetween, wherein at least one of the plurality of core members includes a transparent window;
positioning a core member with the transparent window between adjacent reinforcement structures;
pultruding the reinforcement structures and core members together to apply an inner skin layer onto the inner layers of the reinforcement structures and core members and an outer skin layer onto the outer layers of the reinforcement structures and core members; and
removing at least a portion of at least one of the pultruded inner skin layer or outer skin layer from the transparent window.
12 . The method of claim 11 , wherein transparent window is made of plastic.
13 . The method of claim 11 , further comprising:
pultruding a first set of reinforcement structures and core members together to form a first composite vehicle panel;
pultruding a second set of reinforcement structures and core members together to form a second composite vehicle panel;
forming a connector, the connector having a first pair of sidewalls defining a first channel and a second pair of sidewalls defining second channel;
inserting the first composite panel in the first channel of the connector; and
inserting the second composite panel in the second channel of the connector.
14 . The method of claim 13 , wherein the first channel of the connector is oriented perpendicular to the second channel of the connector.
15 . The method of claim 13 , wherein forming the connector includes forming a third pair of sidewalls defining a third channel and a fourth pair of sidewalls defining a fourth channel, each of the first, second, third and fourth channels of the connector are orthogonal to each other.
16 . The method of claim 13 , wherein at least the first composite panel is releasably coupled to the connector.
17 . The method of claim 13 , wherein the connector includes a closed cell between the first and second composite panels.
18 . The method of claim 13 , further comprising dispensing adhesive through at least one aperture disposed within at least one of the sidewalls of the first channel, the adhesive dispensed after the first panel is inserted to engage the inner edge of the connector channel.
19 . The method of claim 16 , wherein at least one of the first and second channels of the connector includes an inner edge extending between the sidewalls.
20 . The method of claim 19 , wherein the first panel is inserted until an edge of the first panel engages the inner edge of the connector channel.