This invention relates to a canopy locking and releasing apparatus for mounting a canopy to the fuselage of a vehicle. The canopy locking and releasing apparatus is comprised of several mechanisms. These include internal canopy locking and releasing mechanism, the external (Type A, B, or C) canopy locking and releasing mechanisms, a hinge plate and base mechanism, a hinge retaining pin, and a fuselage locking and releasing device for the hinge base. The apparatus is mounted on the sides of a canopy and attached to the cockpit of a vehicle. This apparatus allows for quick and easy opening of the canopy for routine or emergent access and driver entry or egress. An unique advantage of the canopy side mount locking and releasing hinge mechanism for vehicles is that the cockpit is easily accessible from either side of the vehicle, from the inside and outside of the vehicle, or if necessary, from both sides of the vehicle at once. Additionally, there is shown an alternative use for the internal locking and releasing mechanism and the retaining pin.

Apparatus and associated methods relate to a modular vehicle roof frame with at least two support members having at an upper end at least one coupling member through which the support member is axially assembled and releasably coupled to a plurality of top frame members such that each top frame member is releasably coupled to a plurality of support members. In an illustrative example, when the frame is assembled the support members may be substantially vertical and the top frame members may be substantially horizontal. When the frame is coupled to a vehicle the coupling members may, for example, be oriented substantially parallel to a longitudinal axis of the vehicle. The frame may be assembled, for example, by alternately assembling top frame members and support members. Various embodiments may advantageously allow a disassembled frame to be stored within a small sized container suitable for various ground shipping services.