D

Deck Extension: a section of the vehicle body deck that extends past the rear end of the vehicle body behind the rear door; commonly used with underbody (tuckaway) tail-lift applications, most deck extensions have steps on the sides to allow for easy access to the cargo area without having to fold out the lift-gate.

Dock Bumper: the style of dock bumper employed depends on the type of bumper on the unit. A unit with a 4” Trivan bumper generally has two rubber rear frame protectors mounted on 2x2x0.125HSS (steel tube) sections located on the bumper uprights. 10” Trivan step-bumpers generally have moulded rubber D-sections mounted on the outside surface of the step to provide protection from accidental bumping. (see Faucher, F17)

Doors:

- Roll Up Doors:
· Whiting: standard Trivan roll up door, used for cutoff vans and freight vans. The standard width for an 8’ unit is 87” and for an 8’-6” unit is 93”. The height of the door depends on the overall height of the unit (i.e. 65-99”). All roll up doors require tracks to be fastened to the side walls and a balancer to be installed on the inside of the rear profile header; these requirements impose certain restrictions on the minimum height of a vehicle with a given size of roll up door. Whiting roll up doors come equipped with a standard hook-and-catch MS (Max Security) Lock; optional slam locks with inside release handles are also available (see Locks for more information).
· Tempguard 1-1/2”: an insulated pultruded roll up door suitable for most insulated van bodies.
· Coldsaver 2”: an insulated extruded aluminum roll up door for use under extreme conditions.
· Roll Up Side Doors: a smaller roll up door, ideal for side compartments in situations where a swing-out door is not desirable (i.e. small spaces or roadside assistance / emergency vehicles). These doors can be made to any size and are constructed with integral continuous hinge joints at one inch intervals, providing optimal strength and flexibility for the door. The doors are latched with a stainless steel liftbar bottom rail which is corrosion resistant and maintains the smooth interior door surface to prevent hang-up on equipment.
- Full Swing: cargo-style doors that provide full access to the payload area of the vehicle body without compromising over-head payload space, as with a roll up door. May cause problems if opening in a confined space.
- “Butterfly”: a full-swing door that is hinged in the middle to allow for either partial opening or for opening in more confined spaces than a full swing door would allow.
- Man Door: a smaller version of the full swing door, often mounted in the side of the vehicle body, that allows for access to the payload area without having to open the rear doors. Man doors are especially useful for units that have rail-lift loading platforms or are equipped with a conventional tail-lift loader because then the platform at the rear of the vehicle body does not have to be moved out of the way.

- Sliding Bulkhead Door: a Trivan manufactured 3/4” plywood door mounted on a slider that closes off the 26” opening between the chassis cab and the vehicle body on standard Trivan cutoff vans.

Door Edge: aluminum sections that form the perimeter of a door and provide a seal for the door opening.

- "New". Style: extruded aluminum section, used for man doors, toolboxes, etc. Designed to work with "New". style door frame; allows for more flexibility in installation.
- "Old" Style: extruded aluminum section used primarily for full-swing doors because this door edge does not require an aluminum door frame to make a seal around the door opening.

Door Frame: aluminum sections installed in the door opening to which is installed; combined with door edge to provide a seal for the opening.

- "New" Style: extruded aluminum section, used for man doors, toolboxes, etc. Ideal for aluminum-to-steel applications.

Door Holders: for holding doors open against the side of a unit
- Hook-and-Keeper: consisting of a 4” hold back (the “hook” portion of the mechanism; generally mounted on the door at chest height) and a 4” hold back socket (the “catch” portion of the mechanism; generally mounted on the outside wall of the unit) used to hold large doors and toolboxes open (H19).

- Plunger and Nylon Socket: consisting of either a 1” or a 2” stem mounted on the door that plugs into the nylon socket mounted on the wall of the unit. The mounting location is generally located at a convenient point near the bottom of the door (H21).

Door Seals: a variety of specialized rubber door seals for the various door extrusions are available to provide a temperature, rain, and dust seal for the door.

Drip Moulding: an extruded aluminum section commonly installed over doorframes and toolboxes to prevent water from running down the wall panels and dripping directly into openings.